Home / 138,151.17-207,226.77-38,311.38

Finding the Fourth Proportional to 138,151.17, 207,226.77 and 38,311.38

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Solution

The fourth proportional to 138,151.17, 207,226.77 and 38,311.38 is: 57,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,151.17 : 207,226.77 = 38,311.38 : x
  2. Step 2: Convert to fraction form
    138,151.17/207,226.77 = 38,311.38/x
  3. Step 3: Cross multiply
    138,151.17x = 207,226.77 × 38,311.38
  4. Step 4: Simplify right side
    138,151.17x = 7,939,143,531.64
  5. Step 5: Solve for x
    x = 7,939,143,531.64/138,151.17
  6. Step 6: Final answer
    x = 57,467.07

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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.