Home / 141,761.13-195,635.82-78,097.56

Finding the Fourth Proportional to 141,761.13, 195,635.82 and 78,097.56

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Solution

The fourth proportional to 141,761.13, 195,635.82 and 78,097.56 is: 107,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,761.13 : 195,635.82 = 78,097.56 : x
  2. Step 2: Convert to fraction form
    141,761.13/195,635.82 = 78,097.56/x
  3. Step 3: Cross multiply
    141,761.13x = 195,635.82 × 78,097.56
  4. Step 4: Simplify right side
    141,761.13x = 15,278,680,190.60
  5. Step 5: Solve for x
    x = 15,278,680,190.60/141,761.13
  6. Step 6: Final answer
    x = 107,777.64

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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.