Home / 139,423.46-192,399.22-75,759.88

Finding the Fourth Proportional to 139,423.46, 192,399.22 and 75,759.88

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Solution

The fourth proportional to 139,423.46, 192,399.22 and 75,759.88 is: 104,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,423.46 : 192,399.22 = 75,759.88 : x
  2. Step 2: Convert to fraction form
    139,423.46/192,399.22 = 75,759.88/x
  3. Step 3: Cross multiply
    139,423.46x = 192,399.22 × 75,759.88
  4. Step 4: Simplify right side
    139,423.46x = 14,576,141,819.29
  5. Step 5: Solve for x
    x = 14,576,141,819.29/139,423.46
  6. Step 6: Final answer
    x = 104,545.83

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1.5x scale

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.