Home / 139,206.28-192,104.78-75,544.06

Finding the Fourth Proportional to 139,206.28, 192,104.78 and 75,544.06

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Solution

The fourth proportional to 139,206.28, 192,104.78 and 75,544.06 is: 104,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,206.28 : 192,104.78 = 75,544.06 : x
  2. Step 2: Convert to fraction form
    139,206.28/192,104.78 = 75,544.06/x
  3. Step 3: Cross multiply
    139,206.28x = 192,104.78 × 75,544.06
  4. Step 4: Simplify right side
    139,206.28x = 14,512,375,026.61
  5. Step 5: Solve for x
    x = 14,512,375,026.61/139,206.28
  6. Step 6: Final answer
    x = 104,250.86

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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.