Home / 141,727.28-195,584.18-78,064.92

Finding the Fourth Proportional to 141,727.28, 195,584.18 and 78,064.92

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Solution

The fourth proportional to 141,727.28, 195,584.18 and 78,064.92 is: 107,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,727.28 : 195,584.18 = 78,064.92 : x
  2. Step 2: Convert to fraction form
    141,727.28/195,584.18 = 78,064.92/x
  3. Step 3: Cross multiply
    141,727.28x = 195,584.18 × 78,064.92
  4. Step 4: Simplify right side
    141,727.28x = 15,268,262,974.64
  5. Step 5: Solve for x
    x = 15,268,262,974.64/141,727.28
  6. Step 6: Final answer
    x = 107,729.88

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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.