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Finding the Fourth Proportional to 80,201.97, 120,300.39 and 38,112.39

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Solution

The fourth proportional to 80,201.97, 120,300.39 and 38,112.39 is: 57,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,201.97 : 120,300.39 = 38,112.39 : x
  2. Step 2: Convert to fraction form
    80,201.97/120,300.39 = 38,112.39/x
  3. Step 3: Cross multiply
    80,201.97x = 120,300.39 × 38,112.39
  4. Step 4: Simplify right side
    80,201.97x = 4,584,935,380.83
  5. Step 5: Solve for x
    x = 4,584,935,380.83/80,201.97
  6. Step 6: Final answer
    x = 57,167.37

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1.5x scale

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.