Finding the Fourth Proportional to 175,831.68, 242,691.16 and 100,423.92
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Solution
The fourth proportional to 175,831.68, 242,691.16 and 100,423.92 is: 138,609.82
Step by Step Solution
- Step 1: Write the proportion equation
175,831.68 : 242,691.16 = 100,423.92 : x - Step 2: Convert to fraction form
175,831.68/242,691.16 = 100,423.92/x - Step 3: Cross multiply
175,831.68x = 242,691.16 × 100,423.92 - Step 4: Simplify right side
175,831.68x = 24,371,997,636.55 - Step 5: Solve for x
x = 24,371,997,636.55/175,831.68 - Step 6: Final answer
x = 138,609.82
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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.