Home / 138,600.20-207,546.06-76,202.12

Finding the Fourth Proportional to 138,600.20, 207,546.06 and 76,202.12

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Solution

The fourth proportional to 138,600.20, 207,546.06 and 76,202.12 is: 114,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600.20 : 207,546.06 = 76,202.12 : x
  2. Step 2: Convert to fraction form
    138,600.20/207,546.06 = 76,202.12/x
  3. Step 3: Cross multiply
    138,600.20x = 207,546.06 × 76,202.12
  4. Step 4: Simplify right side
    138,600.20x = 15,815,449,769.65
  5. Step 5: Solve for x
    x = 15,815,449,769.65/138,600.20
  6. Step 6: Final answer
    x = 114,108.42

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1.5x scale

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.