Finding the Fourth Proportional to 115,008.99, 172,529.68 and 40,118.21
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Solution
The fourth proportional to 115,008.99, 172,529.68 and 40,118.21 is: 60,182.96
Step by Step Solution
- Step 1: Write the proportion equation
115,008.99 : 172,529.68 = 40,118.21 : x - Step 2: Convert to fraction form
115,008.99/172,529.68 = 40,118.21/x - Step 3: Cross multiply
115,008.99x = 172,529.68 × 40,118.21 - Step 4: Simplify right side
115,008.99x = 6,921,581,401.85 - Step 5: Solve for x
x = 6,921,581,401.85/115,008.99 - Step 6: Final answer
x = 60,182.96
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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.