Home / 138,037.77-207,061.26-38,189.61

Finding the Fourth Proportional to 138,037.77, 207,061.26 and 38,189.61

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Solution

The fourth proportional to 138,037.77, 207,061.26 and 38,189.61 is: 57,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,037.77 : 207,061.26 = 38,189.61 : x
  2. Step 2: Convert to fraction form
    138,037.77/207,061.26 = 38,189.61/x
  3. Step 3: Cross multiply
    138,037.77x = 207,061.26 × 38,189.61
  4. Step 4: Simplify right side
    138,037.77x = 7,907,587,730.20
  5. Step 5: Solve for x
    x = 7,907,587,730.20/138,037.77
  6. Step 6: Final answer
    x = 57,285.68

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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.