Finding the Fourth Proportional to 122,626.62, 169,229.19 and 68,912.70
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Solution
The fourth proportional to 122,626.62, 169,229.19 and 68,912.70 is: 95,102.03
Step by Step Solution
- Step 1: Write the proportion equation
122,626.62 : 169,229.19 = 68,912.70 : x - Step 2: Convert to fraction form
122,626.62/169,229.19 = 68,912.70/x - Step 3: Cross multiply
122,626.62x = 169,229.19 × 68,912.70 - Step 4: Simplify right side
122,626.62x = 11,662,040,401.71 - Step 5: Solve for x
x = 11,662,040,401.71/122,626.62 - Step 6: Final answer
x = 95,102.03
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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.