Finding the Fourth Proportional to 125,821.28, 173,632.71 and 72,104.92
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Solution
The fourth proportional to 125,821.28, 173,632.71 and 72,104.92 is: 99,504.41
Step by Step Solution
- Step 1: Write the proportion equation
125,821.28 : 173,632.71 = 72,104.92 : x - Step 2: Convert to fraction form
125,821.28/173,632.71 = 72,104.92/x - Step 3: Cross multiply
125,821.28x = 173,632.71 × 72,104.92 - Step 4: Simplify right side
125,821.28x = 12,519,772,500.24 - Step 5: Solve for x
x = 12,519,772,500.24/125,821.28 - Step 6: Final answer
x = 99,504.41
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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.