Home / 141,855.55-195,757.50-78,193.20

Finding the Fourth Proportional to 141,855.55, 195,757.50 and 78,193.20

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Solution

The fourth proportional to 141,855.55, 195,757.50 and 78,193.20 is: 107,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,855.55 : 195,757.50 = 78,193.20 : x
  2. Step 2: Convert to fraction form
    141,855.55/195,757.50 = 78,193.20/x
  3. Step 3: Cross multiply
    141,855.55x = 195,757.50 × 78,193.20
  4. Step 4: Simplify right side
    141,855.55x = 15,306,904,370.21
  5. Step 5: Solve for x
    x = 15,306,904,370.21/141,855.55
  6. Step 6: Final answer
    x = 107,904.87

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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.