Home / 138,933.12-208,398.24-33,753.36

Finding the Fourth Proportional to 138,933.12, 208,398.24 and 33,753.36

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Solution

The fourth proportional to 138,933.12, 208,398.24 and 33,753.36 is: 50,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,933.12 : 208,398.24 = 33,753.36 : x
  2. Step 2: Convert to fraction form
    138,933.12/208,398.24 = 33,753.36/x
  3. Step 3: Cross multiply
    138,933.12x = 208,398.24 × 33,753.36
  4. Step 4: Simplify right side
    138,933.12x = 7,034,140,818.09
  5. Step 5: Solve for x
    x = 7,034,140,818.09/138,933.12
  6. Step 6: Final answer
    x = 50,629.69

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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.