Finding the Fourth Proportional to 115,861.20, 173,819.54 and 48,355.70
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Solution
The fourth proportional to 115,861.20, 173,819.54 and 48,355.70 is: 72,545.12
Step by Step Solution
- Step 1: Write the proportion equation
115,861.20 : 173,819.54 = 48,355.70 : x - Step 2: Convert to fraction form
115,861.20/173,819.54 = 48,355.70/x - Step 3: Cross multiply
115,861.20x = 173,819.54 × 48,355.70 - Step 4: Simplify right side
115,861.20x = 8,405,164,782.17 - Step 5: Solve for x
x = 8,405,164,782.17/115,861.20 - Step 6: Final answer
x = 72,545.12
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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.