Finding the Fourth Proportional to 156,122.71, 215,449.17 and 84,502.62
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Solution
The fourth proportional to 156,122.71, 215,449.17 and 84,502.62 is: 116,613.52
Step by Step Solution
- Step 1: Write the proportion equation
156,122.71 : 215,449.17 = 84,502.62 : x - Step 2: Convert to fraction form
156,122.71/215,449.17 = 84,502.62/x - Step 3: Cross multiply
156,122.71x = 215,449.17 × 84,502.62 - Step 4: Simplify right side
156,122.71x = 18,206,019,341.83 - Step 5: Solve for x
x = 18,206,019,341.83/156,122.71 - Step 6: Final answer
x = 116,613.52
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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.