Finding the Fourth Proportional to 138,593.65, 208,240.79 and 132,988.62
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Solution
The fourth proportional to 138,593.65, 208,240.79 and 132,988.62 is: 199,819.08
Step by Step Solution
- Step 1: Write the proportion equation
138,593.65 : 208,240.79 = 132,988.62 : x - Step 2: Convert to fraction form
138,593.65/208,240.79 = 132,988.62/x - Step 3: Cross multiply
138,593.65x = 208,240.79 × 132,988.62 - Step 4: Simplify right side
138,593.65x = 27,693,655,299.95 - Step 5: Solve for x
x = 27,693,655,299.95/138,593.65 - Step 6: Final answer
x = 199,819.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.