Finding the Fourth Proportional to 159,678.99, 220,358.57 and 88,057.17
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Solution
The fourth proportional to 159,678.99, 220,358.57 and 88,057.17 is: 121,519.75
Step by Step Solution
- Step 1: Write the proportion equation
159,678.99 : 220,358.57 = 88,057.17 : x - Step 2: Convert to fraction form
159,678.99/220,358.57 = 88,057.17/x - Step 3: Cross multiply
159,678.99x = 220,358.57 × 88,057.17 - Step 4: Simplify right side
159,678.99x = 19,404,151,619.16 - Step 5: Solve for x
x = 19,404,151,619.16/159,678.99 - Step 6: Final answer
x = 121,519.75
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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.