Home / 129,611.31-194,493.51-54,726.61

Finding the Fourth Proportional to 129,611.31, 194,493.51 and 54,726.61

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Solution

The fourth proportional to 129,611.31, 194,493.51 and 54,726.61 is: 82,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.31 : 194,493.51 = 54,726.61 : x
  2. Step 2: Convert to fraction form
    129,611.31/194,493.51 = 54,726.61/x
  3. Step 3: Cross multiply
    129,611.31x = 194,493.51 × 54,726.61
  4. Step 4: Simplify right side
    129,611.31x = 10,643,970,469.30
  5. Step 5: Solve for x
    x = 10,643,970,469.30/129,611.31
  6. Step 6: Final answer
    x = 82,122.24

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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.