Finding the Fourth Proportional to 125,471.15, 173,138.68 and 74,475.17
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Solution
The fourth proportional to 125,471.15, 173,138.68 and 74,475.17 is: 102,768.90
Step by Step Solution
- Step 1: Write the proportion equation
125,471.15 : 173,138.68 = 74,475.17 : x - Step 2: Convert to fraction form
125,471.15/173,138.68 = 74,475.17/x - Step 3: Cross multiply
125,471.15x = 173,138.68 × 74,475.17 - Step 4: Simplify right side
125,471.15x = 12,894,532,626.58 - Step 5: Solve for x
x = 12,894,532,626.58/125,471.15 - Step 6: Final answer
x = 102,768.90
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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.