Finding the Fourth Proportional to 125,672.18, 173,428.18 and 69,087.20
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Solution
The fourth proportional to 125,672.18, 173,428.18 and 69,087.20 is: 95,340.65
Step by Step Solution
- Step 1: Write the proportion equation
125,672.18 : 173,428.18 = 69,087.20 : x - Step 2: Convert to fraction form
125,672.18/173,428.18 = 69,087.20/x - Step 3: Cross multiply
125,672.18x = 173,428.18 × 69,087.20 - Step 4: Simplify right side
125,672.18x = 11,981,667,357.30 - Step 5: Solve for x
x = 11,981,667,357.30/125,672.18 - Step 6: Final answer
x = 95,340.65
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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.