Finding the Fourth Proportional to 125,647.38, 173,394.72 and 68,286.70
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Solution
The fourth proportional to 125,647.38, 173,394.72 and 68,286.70 is: 94,236.38
Step by Step Solution
- Step 1: Write the proportion equation
125,647.38 : 173,394.72 = 68,286.70 : x - Step 2: Convert to fraction form
125,647.38/173,394.72 = 68,286.70/x - Step 3: Cross multiply
125,647.38x = 173,394.72 × 68,286.70 - Step 4: Simplify right side
125,647.38x = 11,840,553,516.87 - Step 5: Solve for x
x = 11,840,553,516.87/125,647.38 - Step 6: Final answer
x = 94,236.38
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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.