Home / 138,296.20-207,338.36-43,471.52

Finding the Fourth Proportional to 138,296.20, 207,338.36 and 43,471.52

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Solution

The fourth proportional to 138,296.20, 207,338.36 and 43,471.52 is: 65,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,296.20 : 207,338.36 = 43,471.52 : x
  2. Step 2: Convert to fraction form
    138,296.20/207,338.36 = 43,471.52/x
  3. Step 3: Cross multiply
    138,296.20x = 207,338.36 × 43,471.52
  4. Step 4: Simplify right side
    138,296.20x = 9,013,313,820.26
  5. Step 5: Solve for x
    x = 9,013,313,820.26/138,296.20
  6. Step 6: Final answer
    x = 65,173.98

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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.