Finding the Fourth Proportional to 125,235.87, 172,832.57 and 74,278.77
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Solution
The fourth proportional to 125,235.87, 172,832.57 and 74,278.77 is: 102,508.90
Step by Step Solution
- Step 1: Write the proportion equation
125,235.87 : 172,832.57 = 74,278.77 : x - Step 2: Convert to fraction form
125,235.87/172,832.57 = 74,278.77/x - Step 3: Cross multiply
125,235.87x = 172,832.57 × 74,278.77 - Step 4: Simplify right side
125,235.87x = 12,837,790,715.54 - Step 5: Solve for x
x = 12,837,790,715.54/125,235.87 - Step 6: Final answer
x = 102,508.90
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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.