查找比期望值大的特定单元格包含值

Question

I'm looking for a way to return a specific cell value from a range based on an initial desired value. It looks like this:

DesiredValue typed in cell: | 125|

Search Range:

line1         RangeA|RangeB
line2         1     | 50
line3         51    | 100
line4         101   | 500
line5         501   | 1500

I'm trying to get two formulas:

the first one returns the immediate bigger value in rangeA (500 in this case), the second one returns the immediate lower value (101 in this case).

Currently I'm using a very ugly if formula, for the greater value as an example:

if[DesiredValue]<=[b2], [B2], if [DesiredValue]<=[b3], [b3], if...

A modified version of this formula is used to get the lower number, but it is really not the way to do it since i'm gonna have to use it in a couple hundread ranges.

Thanks in advance!

Answer 1

With 125 typed into D2 the first will return 101 from Range A ; the second will return 500 from Range B .

=INDEX(A:A, MATCH(D2, A:A))
=INDEX(B:B, MATCH(D2, A:A))

This method is known as a INDEX / MATCH function pair.

When seeking approximate matches, the values to be examined must be in ascending order as yours are.