Finding the Fourth Proportional to 128,375.20, 192,565.50 and 44,134.48
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Solution
The fourth proportional to 128,375.20, 192,565.50 and 44,134.48 is: 66,202.65
Step by Step Solution
- Step 1: Write the proportion equation
128,375.20 : 192,565.50 = 44,134.48 : x - Step 2: Convert to fraction form
128,375.20/192,565.50 = 44,134.48/x - Step 3: Cross multiply
128,375.20x = 192,565.50 × 44,134.48 - Step 4: Simplify right side
128,375.20x = 8,498,778,208.44 - Step 5: Solve for x
x = 8,498,778,208.44/128,375.20 - Step 6: Final answer
x = 66,202.65
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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.