Finding the Fourth Proportional to 133,048.10, 199,572.15 and 115,163.30
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Solution
The fourth proportional to 133,048.10, 199,572.15 and 115,163.30 is: 172,744.95
Step by Step Solution
- Step 1: Write the proportion equation
133,048.10 : 199,572.15 = 115,163.30 : x - Step 2: Convert to fraction form
133,048.10/199,572.15 = 115,163.30/x - Step 3: Cross multiply
133,048.10x = 199,572.15 × 115,163.30 - Step 4: Simplify right side
133,048.10x = 22,983,387,382.10 - Step 5: Solve for x
x = 22,983,387,382.10/133,048.10 - Step 6: Final answer
x = 172,744.95
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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.