Home / 138,324.20-207,486.30-82,227.65

Finding the Fourth Proportional to 138,324.20, 207,486.30 and 82,227.65

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Solution

The fourth proportional to 138,324.20, 207,486.30 and 82,227.65 is: 123,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,324.20 : 207,486.30 = 82,227.65 : x
  2. Step 2: Convert to fraction form
    138,324.20/207,486.30 = 82,227.65/x
  3. Step 3: Cross multiply
    138,324.20x = 207,486.30 × 82,227.65
  4. Step 4: Simplify right side
    138,324.20x = 17,061,110,856.20
  5. Step 5: Solve for x
    x = 17,061,110,856.20/138,324.20
  6. Step 6: Final answer
    x = 123,341.48

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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.