SSC CGL 2023 PYQ — Question 68

SSC CGL - 18 July 2023 - Shift 4 • Quantitative Aptitude • Q68

Find the fourth proportional of 144, 192, and 216.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 288.

Concept:

a/b = c/d

Where d is the fourth proportion.

Calculations:

Let the fourth proportion be x.

Here, a = 144, b = 192, c = 216, and d = x

Now, on putting the given values

⇒ 144/192 = 216/x

⇒ 72/96 = 216/x

⇒ x = (216 × 96)/72

⇒ x = 288