Home / 123,760.31-185,610.74-57,136.43

Finding the Fourth Proportional to 123,760.31, 185,610.74 and 57,136.43

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Solution

The fourth proportional to 123,760.31, 185,610.74 and 57,136.43 is: 85,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,760.31 : 185,610.74 = 57,136.43 : x
  2. Step 2: Convert to fraction form
    123,760.31/185,610.74 = 57,136.43/x
  3. Step 3: Cross multiply
    123,760.31x = 185,610.74 × 57,136.43
  4. Step 4: Simplify right side
    123,760.31x = 10,605,135,231.60
  5. Step 5: Solve for x
    x = 10,605,135,231.60/123,760.31
  6. Step 6: Final answer
    x = 85,690.92

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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.