Home / 141,691.80-195,535.96-78,029.84

Finding the Fourth Proportional to 141,691.80, 195,535.96 and 78,029.84

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Solution

The fourth proportional to 141,691.80, 195,535.96 and 78,029.84 is: 107,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,691.80 : 195,535.96 = 78,029.84 : x
  2. Step 2: Convert to fraction form
    141,691.80/195,535.96 = 78,029.84/x
  3. Step 3: Cross multiply
    141,691.80x = 195,535.96 × 78,029.84
  4. Step 4: Simplify right side
    141,691.80x = 15,257,639,673.05
  5. Step 5: Solve for x
    x = 15,257,639,673.05/141,691.80
  6. Step 6: Final answer
    x = 107,681.88

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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.