Home / 204,917.76-307,227.24-138,192.12

Finding the Fourth Proportional to 204,917.76, 307,227.24 and 138,192.12

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Solution

The fourth proportional to 204,917.76, 307,227.24 and 138,192.12 is: 207,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,917.76 : 307,227.24 = 138,192.12 : x
  2. Step 2: Convert to fraction form
    204,917.76/307,227.24 = 138,192.12/x
  3. Step 3: Cross multiply
    204,917.76x = 307,227.24 × 138,192.12
  4. Step 4: Simplify right side
    204,917.76x = 42,456,383,617.35
  5. Step 5: Solve for x
    x = 42,456,383,617.35/204,917.76
  6. Step 6: Final answer
    x = 207,187.43

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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.