Finding the Fourth Proportional to 125,149.58, 187,724.45 and 30,379.91
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Solution
The fourth proportional to 125,149.58, 187,724.45 and 30,379.91 is: 45,569.88
Step by Step Solution
- Step 1: Write the proportion equation
125,149.58 : 187,724.45 = 30,379.91 : x - Step 2: Convert to fraction form
125,149.58/187,724.45 = 30,379.91/x - Step 3: Cross multiply
125,149.58x = 187,724.45 × 30,379.91 - Step 4: Simplify right side
125,149.58x = 5,703,051,033.13 - Step 5: Solve for x
x = 5,703,051,033.13/125,149.58 - Step 6: Final answer
x = 45,569.88
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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.