Finding the Fourth Proportional to 115,728.08, 173,590.84 and 87,819.52
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Solution
The fourth proportional to 115,728.08, 173,590.84 and 87,819.52 is: 131,728.31
Step by Step Solution
- Step 1: Write the proportion equation
115,728.08 : 173,590.84 = 87,819.52 : x - Step 2: Convert to fraction form
115,728.08/173,590.84 = 87,819.52/x - Step 3: Cross multiply
115,728.08x = 173,590.84 × 87,819.52 - Step 4: Simplify right side
115,728.08x = 15,244,664,245.20 - Step 5: Solve for x
x = 15,244,664,245.20/115,728.08 - Step 6: Final answer
x = 131,728.31
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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.