Home / 132,966.20-199,486.82-54,137

Finding the Fourth Proportional to 132,966.20, 199,486.82 and 54,137

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Solution

The fourth proportional to 132,966.20, 199,486.82 and 54,137 is: 81,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,966.20 : 199,486.82 = 54,137 : x
  2. Step 2: Convert to fraction form
    132,966.20/199,486.82 = 54,137/x
  3. Step 3: Cross multiply
    132,966.20x = 199,486.82 × 54,137
  4. Step 4: Simplify right side
    132,966.20x = 10,799,617,974.34
  5. Step 5: Solve for x
    x = 10,799,617,974.34/132,966.20
  6. Step 6: Final answer
    x = 81,220.78

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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.