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SSC Selection Post 2022 PYQ — Question 72

SSC Selection Post - Graduation Level - 2 Aug 2022 - Shift 3 • Quantitative Aptitude • Q72

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What is the fourth proportional of 172,1168,1150?\frac{1}{72}, \frac{1}{168}, \frac{1}{150} ?

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Correct answer: D

Explanation

The correct answer is option 4 i.e. 1350\frac{1}{350}.

 Fourth proportional =1168×1150172=72168×150=7225, ⁣200=1350= \frac{\frac{1}{168} \times \frac{1}{150}}{\frac{1}{72}}= \frac{72}{168 \times 150} = \frac{72}{25,\!200} = \frac{1}{350}