Home / 139,022.20-208,545.58-39,183.24

Finding the Fourth Proportional to 139,022.20, 208,545.58 and 39,183.24

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Solution

The fourth proportional to 139,022.20, 208,545.58 and 39,183.24 is: 58,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,022.20 : 208,545.58 = 39,183.24 : x
  2. Step 2: Convert to fraction form
    139,022.20/208,545.58 = 39,183.24/x
  3. Step 3: Cross multiply
    139,022.20x = 208,545.58 × 39,183.24
  4. Step 4: Simplify right side
    139,022.20x = 8,171,491,512.08
  5. Step 5: Solve for x
    x = 8,171,491,512.08/139,022.20
  6. Step 6: Final answer
    x = 58,778.32

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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.