Home / 126,576.22-189,893.13-67,380.70

Finding the Fourth Proportional to 126,576.22, 189,893.13 and 67,380.70

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Solution

The fourth proportional to 126,576.22, 189,893.13 and 67,380.70 is: 101,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,576.22 : 189,893.13 = 67,380.70 : x
  2. Step 2: Convert to fraction form
    126,576.22/189,893.13 = 67,380.70/x
  3. Step 3: Cross multiply
    126,576.22x = 189,893.13 × 67,380.70
  4. Step 4: Simplify right side
    126,576.22x = 12,795,132,024.59
  5. Step 5: Solve for x
    x = 12,795,132,024.59/126,576.22
  6. Step 6: Final answer
    x = 101,086.38

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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.