Home / 138,122.82-207,143.33-59,218.29

Finding the Fourth Proportional to 138,122.82, 207,143.33 and 59,218.29

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Solution

The fourth proportional to 138,122.82, 207,143.33 and 59,218.29 is: 88,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,122.82 : 207,143.33 = 59,218.29 : x
  2. Step 2: Convert to fraction form
    138,122.82/207,143.33 = 59,218.29/x
  3. Step 3: Cross multiply
    138,122.82x = 207,143.33 × 59,218.29
  4. Step 4: Simplify right side
    138,122.82x = 12,266,673,491.41
  5. Step 5: Solve for x
    x = 12,266,673,491.41/138,122.82
  6. Step 6: Final answer
    x = 88,809.90

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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.