Home / 129,315.43-193,972.96-40,575.86

Finding the Fourth Proportional to 129,315.43, 193,972.96 and 40,575.86

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Solution

The fourth proportional to 129,315.43, 193,972.96 and 40,575.86 is: 60,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,315.43 : 193,972.96 = 40,575.86 : x
  2. Step 2: Convert to fraction form
    129,315.43/193,972.96 = 40,575.86/x
  3. Step 3: Cross multiply
    129,315.43x = 193,972.96 × 40,575.86
  4. Step 4: Simplify right side
    129,315.43x = 7,870,618,496.00
  5. Step 5: Solve for x
    x = 7,870,618,496.00/129,315.43
  6. Step 6: Final answer
    x = 60,863.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.