Finding the Fourth Proportional to 157,140.70, 216,306.48 and 136,962.52
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Solution
The fourth proportional to 157,140.70, 216,306.48 and 136,962.52 is: 188,530.92
Step by Step Solution
- Step 1: Write the proportion equation
157,140.70 : 216,306.48 = 136,962.52 : x - Step 2: Convert to fraction form
157,140.70/216,306.48 = 136,962.52/x - Step 3: Cross multiply
157,140.70x = 216,306.48 × 136,962.52 - Step 4: Simplify right side
157,140.70x = 29,625,880,593.13 - Step 5: Solve for x
x = 29,625,880,593.13/157,140.70 - Step 6: Final answer
x = 188,530.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.