Home / 138,885.11-208,284.67-50,127.38

Finding the Fourth Proportional to 138,885.11, 208,284.67 and 50,127.38

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Solution

The fourth proportional to 138,885.11, 208,284.67 and 50,127.38 is: 75,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,885.11 : 208,284.67 = 50,127.38 : x
  2. Step 2: Convert to fraction form
    138,885.11/208,284.67 = 50,127.38/x
  3. Step 3: Cross multiply
    138,885.11x = 208,284.67 × 50,127.38
  4. Step 4: Simplify right side
    138,885.11x = 10,440,764,801.26
  5. Step 5: Solve for x
    x = 10,440,764,801.26/138,885.11
  6. Step 6: Final answer
    x = 75,175.55

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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.