Home / 139,183.38-192,072.20-75,519.81

Finding the Fourth Proportional to 139,183.38, 192,072.20 and 75,519.81

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Solution

The fourth proportional to 139,183.38, 192,072.20 and 75,519.81 is: 104,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,183.38 : 192,072.20 = 75,519.81 : x
  2. Step 2: Convert to fraction form
    139,183.38/192,072.20 = 75,519.81/x
  3. Step 3: Cross multiply
    139,183.38x = 192,072.20 × 75,519.81
  4. Step 4: Simplify right side
    139,183.38x = 14,505,255,672.68
  5. Step 5: Solve for x
    x = 14,505,255,672.68/139,183.38
  6. Step 6: Final answer
    x = 104,216.87

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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.