Finding the Fourth Proportional to 131,682.13, 181,723.68 and 74,332.91
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Solution
The fourth proportional to 131,682.13, 181,723.68 and 74,332.91 is: 102,580.74
Step by Step Solution
- Step 1: Write the proportion equation
131,682.13 : 181,723.68 = 74,332.91 : x - Step 2: Convert to fraction form
131,682.13/181,723.68 = 74,332.91/x - Step 3: Cross multiply
131,682.13x = 181,723.68 × 74,332.91 - Step 4: Simplify right side
131,682.13x = 13,508,050,404.62 - Step 5: Solve for x
x = 13,508,050,404.62/131,682.13 - Step 6: Final answer
x = 102,580.74
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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.