Home / 129,384.41-194,094.83-45,132.28

Finding the Fourth Proportional to 129,384.41, 194,094.83 and 45,132.28

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Solution

The fourth proportional to 129,384.41, 194,094.83 and 45,132.28 is: 67,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,384.41 : 194,094.83 = 45,132.28 : x
  2. Step 2: Convert to fraction form
    129,384.41/194,094.83 = 45,132.28/x
  3. Step 3: Cross multiply
    129,384.41x = 194,094.83 × 45,132.28
  4. Step 4: Simplify right side
    129,384.41x = 8,759,942,387.60
  5. Step 5: Solve for x
    x = 8,759,942,387.60/129,384.41
  6. Step 6: Final answer
    x = 67,704.78

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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.