Finding the Fourth Proportional to 125,732.25, 173,499.98 and 74,041.12
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Solution
The fourth proportional to 125,732.25, 173,499.98 and 74,041.12 is: 102,170.55
Step by Step Solution
- Step 1: Write the proportion equation
125,732.25 : 173,499.98 = 74,041.12 : x - Step 2: Convert to fraction form
125,732.25/173,499.98 = 74,041.12/x - Step 3: Cross multiply
125,732.25x = 173,499.98 × 74,041.12 - Step 4: Simplify right side
125,732.25x = 12,846,132,685.85 - Step 5: Solve for x
x = 12,846,132,685.85/125,732.25 - Step 6: Final answer
x = 102,170.55
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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.