Home / 138,935.78-208,421.33-44,132.14

Finding the Fourth Proportional to 138,935.78, 208,421.33 and 44,132.14

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Solution

The fourth proportional to 138,935.78, 208,421.33 and 44,132.14 is: 66,203.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,935.78 : 208,421.33 = 44,132.14 : x
  2. Step 2: Convert to fraction form
    138,935.78/208,421.33 = 44,132.14/x
  3. Step 3: Cross multiply
    138,935.78x = 208,421.33 × 44,132.14
  4. Step 4: Simplify right side
    138,935.78x = 9,198,079,314.55
  5. Step 5: Solve for x
    x = 9,198,079,314.55/138,935.78
  6. Step 6: Final answer
    x = 66,203.82

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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.