Finding the Fourth Proportional to 115,149.65, 172,724.47 and 44,979.75
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Solution
The fourth proportional to 115,149.65, 172,724.47 and 44,979.75 is: 67,469.63
Step by Step Solution
- Step 1: Write the proportion equation
115,149.65 : 172,724.47 = 44,979.75 : x - Step 2: Convert to fraction form
115,149.65/172,724.47 = 44,979.75/x - Step 3: Cross multiply
115,149.65x = 172,724.47 × 44,979.75 - Step 4: Simplify right side
115,149.65x = 7,769,103,367.03 - Step 5: Solve for x
x = 7,769,103,367.03/115,149.65 - Step 6: Final answer
x = 67,469.63
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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.