Finding the Fourth Proportional to 113,545.12, 170,317.68 and 43,445.92
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Solution
The fourth proportional to 113,545.12, 170,317.68 and 43,445.92 is: 65,168.88
Step by Step Solution
- Step 1: Write the proportion equation
113,545.12 : 170,317.68 = 43,445.92 : x - Step 2: Convert to fraction form
113,545.12/170,317.68 = 43,445.92/x - Step 3: Cross multiply
113,545.12x = 170,317.68 × 43,445.92 - Step 4: Simplify right side
113,545.12x = 7,399,608,299.87 - Step 5: Solve for x
x = 7,399,608,299.87/113,545.12 - Step 6: Final answer
x = 65,168.88
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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.