Finding the Fourth Proportional to 122,565.48, 169,134.66 and 68,115.12
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Solution
The fourth proportional to 122,565.48, 169,134.66 and 68,115.12 is: 93,995.70
Step by Step Solution
- Step 1: Write the proportion equation
122,565.48 : 169,134.66 = 68,115.12 : x - Step 2: Convert to fraction form
122,565.48/169,134.66 = 68,115.12/x - Step 3: Cross multiply
122,565.48x = 169,134.66 × 68,115.12 - Step 4: Simplify right side
122,565.48x = 11,520,627,662.06 - Step 5: Solve for x
x = 11,520,627,662.06/122,565.48 - Step 6: Final answer
x = 93,995.70
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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.