Home / 126,576.97-189,894.26-67,381.45

Finding the Fourth Proportional to 126,576.97, 189,894.26 and 67,381.45

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Solution

The fourth proportional to 126,576.97, 189,894.26 and 67,381.45 is: 101,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,576.97 : 189,894.26 = 67,381.45 : x
  2. Step 2: Convert to fraction form
    126,576.97/189,894.26 = 67,381.45/x
  3. Step 3: Cross multiply
    126,576.97x = 189,894.26 × 67,381.45
  4. Step 4: Simplify right side
    126,576.97x = 12,795,350,248.57
  5. Step 5: Solve for x
    x = 12,795,350,248.57/126,576.97
  6. Step 6: Final answer
    x = 101,087.51

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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.