Home / 138,234.20-207,351.30-68,250.20

Finding the Fourth Proportional to 138,234.20, 207,351.30 and 68,250.20

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Solution

The fourth proportional to 138,234.20, 207,351.30 and 68,250.20 is: 102,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,234.20 : 207,351.30 = 68,250.20 : x
  2. Step 2: Convert to fraction form
    138,234.20/207,351.30 = 68,250.20/x
  3. Step 3: Cross multiply
    138,234.20x = 207,351.30 × 68,250.20
  4. Step 4: Simplify right side
    138,234.20x = 14,151,767,695.26
  5. Step 5: Solve for x
    x = 14,151,767,695.26/138,234.20
  6. Step 6: Final answer
    x = 102,375.30

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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.