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Finding the Fourth Proportional to 138,893.00, 208,296.41 and 50,134.95

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Solution

The fourth proportional to 138,893.00, 208,296.41 and 50,134.95 is: 75,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,893.00 : 208,296.41 = 50,134.95 : x
  2. Step 2: Convert to fraction form
    138,893.00/208,296.41 = 50,134.95/x
  3. Step 3: Cross multiply
    138,893.00x = 208,296.41 × 50,134.95
  4. Step 4: Simplify right side
    138,893.00x = 10,442,929,849.85
  5. Step 5: Solve for x
    x = 10,442,929,849.85/138,893.00
  6. Step 6: Final answer
    x = 75,186.87

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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.