Finding the Fourth Proportional to 120,337.99, 180,511.17 and 57,125.55
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Solution
The fourth proportional to 120,337.99, 180,511.17 and 57,125.55 is: 85,690.31
Step by Step Solution
- Step 1: Write the proportion equation
120,337.99 : 180,511.17 = 57,125.55 : x - Step 2: Convert to fraction form
120,337.99/180,511.17 = 57,125.55/x - Step 3: Cross multiply
120,337.99x = 180,511.17 × 57,125.55 - Step 4: Simplify right side
120,337.99x = 10,311,800,081.61 - Step 5: Solve for x
x = 10,311,800,081.61/120,337.99 - Step 6: Final answer
x = 85,690.31
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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.