Finding the Fourth Proportional to 159,306.99, 219,841.91 and 87,685.47
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Solution
The fourth proportional to 159,306.99, 219,841.91 and 87,685.47 is: 121,004.99
Step by Step Solution
- Step 1: Write the proportion equation
159,306.99 : 219,841.91 = 87,685.47 : x - Step 2: Convert to fraction form
159,306.99/219,841.91 = 87,685.47/x - Step 3: Cross multiply
159,306.99x = 219,841.91 × 87,685.47 - Step 4: Simplify right side
159,306.99x = 19,276,941,204.05 - Step 5: Solve for x
x = 19,276,941,204.05/159,306.99 - Step 6: Final answer
x = 121,004.99
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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.