If x is the fourth proportional of 48, 72 and 108, what is the value of x?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 162.
First Proportional (a) = 48
Second Proportional (b) = 72
Third Proportional (c) = 108
Fourth Proportional (d) = (b × c)/a
Fourth Proportional (d) = (b × c)/a = (72 × 108)/48 = 162