Home / 129,611.73-194,399.13-40,853.70

Finding the Fourth Proportional to 129,611.73, 194,399.13 and 40,853.70

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Solution

The fourth proportional to 129,611.73, 194,399.13 and 40,853.70 is: 61,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.73 : 194,399.13 = 40,853.70 : x
  2. Step 2: Convert to fraction form
    129,611.73/194,399.13 = 40,853.70/x
  3. Step 3: Cross multiply
    129,611.73x = 194,399.13 × 40,853.70
  4. Step 4: Simplify right side
    129,611.73x = 7,941,923,737.28
  5. Step 5: Solve for x
    x = 7,941,923,737.28/129,611.73
  6. Step 6: Final answer
    x = 61,274.73

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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.