Finding the Fourth Proportional to 125,027.20, 187,491.39 and 40,766.65
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Solution
The fourth proportional to 125,027.20, 187,491.39 and 40,766.65 is: 61,133.86
Step by Step Solution
- Step 1: Write the proportion equation
125,027.20 : 187,491.39 = 40,766.65 : x - Step 2: Convert to fraction form
125,027.20/187,491.39 = 40,766.65/x - Step 3: Cross multiply
125,027.20x = 187,491.39 × 40,766.65 - Step 4: Simplify right side
125,027.20x = 7,643,395,874.14 - Step 5: Solve for x
x = 7,643,395,874.14/125,027.20 - Step 6: Final answer
x = 61,133.86
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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.