Home / 129,209.46-193,814.19-40,469.91

Finding the Fourth Proportional to 129,209.46, 193,814.19 and 40,469.91

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Solution

The fourth proportional to 129,209.46, 193,814.19 and 40,469.91 is: 60,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,209.46 : 193,814.19 = 40,469.91 : x
  2. Step 2: Convert to fraction form
    129,209.46/193,814.19 = 40,469.91/x
  3. Step 3: Cross multiply
    129,209.46x = 193,814.19 × 40,469.91
  4. Step 4: Simplify right side
    129,209.46x = 7,843,642,826.02
  5. Step 5: Solve for x
    x = 7,843,642,826.02/129,209.46
  6. Step 6: Final answer
    x = 60,704.87

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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.