Home / 129,611.13-194,493.24-54,726.43

Finding the Fourth Proportional to 129,611.13, 194,493.24 and 54,726.43

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Solution

The fourth proportional to 129,611.13, 194,493.24 and 54,726.43 is: 82,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.13 : 194,493.24 = 54,726.43 : x
  2. Step 2: Convert to fraction form
    129,611.13/194,493.24 = 54,726.43/x
  3. Step 3: Cross multiply
    129,611.13x = 194,493.24 × 54,726.43
  4. Step 4: Simplify right side
    129,611.13x = 10,643,919,438.23
  5. Step 5: Solve for x
    x = 10,643,919,438.23/129,611.13
  6. Step 6: Final answer
    x = 82,121.96

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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.