Finding the Fourth Proportional to 125,113.20, 187,232.40 and 87,496.80
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Solution
The fourth proportional to 125,113.20, 187,232.40 and 87,496.80 is: 130,939.31
Step by Step Solution
- Step 1: Write the proportion equation
125,113.20 : 187,232.40 = 87,496.80 : x - Step 2: Convert to fraction form
125,113.20/187,232.40 = 87,496.80/x - Step 3: Cross multiply
125,113.20x = 187,232.40 × 87,496.80 - Step 4: Simplify right side
125,113.20x = 16,382,235,856.32 - Step 5: Solve for x
x = 16,382,235,856.32/125,113.20 - Step 6: Final answer
x = 130,939.31
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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.