Home / 138,248.34-207,430.83-82,195.53

Finding the Fourth Proportional to 138,248.34, 207,430.83 and 82,195.53

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Solution

The fourth proportional to 138,248.34, 207,430.83 and 82,195.53 is: 123,327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,248.34 : 207,430.83 = 82,195.53 : x
  2. Step 2: Convert to fraction form
    138,248.34/207,430.83 = 82,195.53/x
  3. Step 3: Cross multiply
    138,248.34x = 207,430.83 × 82,195.53
  4. Step 4: Simplify right side
    138,248.34x = 17,049,887,010.19
  5. Step 5: Solve for x
    x = 17,049,887,010.19/138,248.34
  6. Step 6: Final answer
    x = 123,327.97

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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.