Home / 129,611.38-194,493.61-54,726.68

Finding the Fourth Proportional to 129,611.38, 194,493.61 and 54,726.68

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Solution

The fourth proportional to 129,611.38, 194,493.61 and 54,726.68 is: 82,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.38 : 194,493.61 = 54,726.68 : x
  2. Step 2: Convert to fraction form
    129,611.38/194,493.61 = 54,726.68/x
  3. Step 3: Cross multiply
    129,611.38x = 194,493.61 × 54,726.68
  4. Step 4: Simplify right side
    129,611.38x = 10,643,988,584.05
  5. Step 5: Solve for x
    x = 10,643,988,584.05/129,611.38
  6. Step 6: Final answer
    x = 82,122.33

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1.5x scale

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.