Home / 138,140.28-207,273.30-67,024.53

Finding the Fourth Proportional to 138,140.28, 207,273.30 and 67,024.53

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Solution

The fourth proportional to 138,140.28, 207,273.30 and 67,024.53 is: 100,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,140.28 : 207,273.30 = 67,024.53 : x
  2. Step 2: Convert to fraction form
    138,140.28/207,273.30 = 67,024.53/x
  3. Step 3: Cross multiply
    138,140.28x = 207,273.30 × 67,024.53
  4. Step 4: Simplify right side
    138,140.28x = 13,892,395,514.05
  5. Step 5: Solve for x
    x = 13,892,395,514.05/138,140.28
  6. Step 6: Final answer
    x = 100,567.30

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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.