Finding the Fourth Proportional to 115,149.13, 172,723.70 and 44,979.23
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Solution
The fourth proportional to 115,149.13, 172,723.70 and 44,979.23 is: 67,468.85
Step by Step Solution
- Step 1: Write the proportion equation
115,149.13 : 172,723.70 = 44,979.23 : x - Step 2: Convert to fraction form
115,149.13/172,723.70 = 44,979.23/x - Step 3: Cross multiply
115,149.13x = 172,723.70 × 44,979.23 - Step 4: Simplify right side
115,149.13x = 7,768,979,235.66 - Step 5: Solve for x
x = 7,768,979,235.66/115,149.13 - Step 6: Final answer
x = 67,468.85
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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.