Finding the Fourth Proportional to 125,833.08, 173,657.13 and 72,121.55
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Solution
The fourth proportional to 125,833.08, 173,657.13 and 72,121.55 is: 99,532.02
Step by Step Solution
- Step 1: Write the proportion equation
125,833.08 : 173,657.13 = 72,121.55 : x - Step 2: Convert to fraction form
125,833.08/173,657.13 = 72,121.55/x - Step 3: Cross multiply
125,833.08x = 173,657.13 × 72,121.55 - Step 4: Simplify right side
125,833.08x = 12,524,420,515.87 - Step 5: Solve for x
x = 12,524,420,515.87/125,833.08 - Step 6: Final answer
x = 99,532.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.