Home / 141,913.44-195,839.28-78,251.76

Finding the Fourth Proportional to 141,913.44, 195,839.28 and 78,251.76

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Solution

The fourth proportional to 141,913.44, 195,839.28 and 78,251.76 is: 107,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913.44 : 195,839.28 = 78,251.76 : x
  2. Step 2: Convert to fraction form
    141,913.44/195,839.28 = 78,251.76/x
  3. Step 3: Cross multiply
    141,913.44x = 195,839.28 × 78,251.76
  4. Step 4: Simplify right side
    141,913.44x = 15,324,768,337.13
  5. Step 5: Solve for x
    x = 15,324,768,337.13/141,913.44
  6. Step 6: Final answer
    x = 107,986.73

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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.