Finding the Fourth Proportional to 159,349.44, 219,893.88 and 87,715.47
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Solution
The fourth proportional to 159,349.44, 219,893.88 and 87,715.47 is: 121,042.75
Step by Step Solution
- Step 1: Write the proportion equation
159,349.44 : 219,893.88 = 87,715.47 : x - Step 2: Convert to fraction form
159,349.44/219,893.88 = 87,715.47/x - Step 3: Cross multiply
159,349.44x = 219,893.88 × 87,715.47 - Step 4: Simplify right side
159,349.44x = 19,288,095,034.32 - Step 5: Solve for x
x = 19,288,095,034.32/159,349.44 - Step 6: Final answer
x = 121,042.75
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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.