Home / 444,727.31-667,155.96-129,143.21

Finding the Fourth Proportional to 444,727.31, 667,155.96 and 129,143.21

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Solution

The fourth proportional to 444,727.31, 667,155.96 and 129,143.21 is: 193,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,727.31 : 667,155.96 = 129,143.21 : x
  2. Step 2: Convert to fraction form
    444,727.31/667,155.96 = 129,143.21/x
  3. Step 3: Cross multiply
    444,727.31x = 667,155.96 × 129,143.21
  4. Step 4: Simplify right side
    444,727.31x = 86,158,658,909.25
  5. Step 5: Solve for x
    x = 86,158,658,909.25/444,727.31
  6. Step 6: Final answer
    x = 193,733.68

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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.