Matching index in two numberLists

Suppose I have two numberLists (A and B) and I want to find the maximum value in one numberList (A) and display the corresponding item from the other numberlist (B).

A=[2 4 7 9 15 4]
B=[100 101 102 103 104 105]

For this example I would like to display 104 in a note as 15 is the 5th index in A and 104 is the 5th index in B.

Any way that I can do this?

Use max(A) to find the value you want, then use that value in this method from another post:

Determining Position in a List


Wonderful, this should work.

Thanks a lot,