Home / 141,470.10-195,227.19-77,808.78

Finding the Fourth Proportional to 141,470.10, 195,227.19 and 77,808.78

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Solution

The fourth proportional to 141,470.10, 195,227.19 and 77,808.78 is: 107,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,470.10 : 195,227.19 = 77,808.78 : x
  2. Step 2: Convert to fraction form
    141,470.10/195,227.19 = 77,808.78/x
  3. Step 3: Cross multiply
    141,470.10x = 195,227.19 × 77,808.78
  4. Step 4: Simplify right side
    141,470.10x = 15,190,389,476.73
  5. Step 5: Solve for x
    x = 15,190,389,476.73/141,470.10
  6. Step 6: Final answer
    x = 107,375.26

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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.