Home / 129,377.97-194,067.81-45,137.79

Finding the Fourth Proportional to 129,377.97, 194,067.81 and 45,137.79

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Solution

The fourth proportional to 129,377.97, 194,067.81 and 45,137.79 is: 67,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,377.97 : 194,067.81 = 45,137.79 : x
  2. Step 2: Convert to fraction form
    129,377.97/194,067.81 = 45,137.79/x
  3. Step 3: Cross multiply
    129,377.97x = 194,067.81 × 45,137.79
  4. Step 4: Simplify right side
    129,377.97x = 8,759,792,053.54
  5. Step 5: Solve for x
    x = 8,759,792,053.54/129,377.97
  6. Step 6: Final answer
    x = 67,706.98

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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.