Home / 129,487.28-194,251.44-45,270.80

Finding the Fourth Proportional to 129,487.28, 194,251.44 and 45,270.80

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Solution

The fourth proportional to 129,487.28, 194,251.44 and 45,270.80 is: 67,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487.28 : 194,251.44 = 45,270.80 : x
  2. Step 2: Convert to fraction form
    129,487.28/194,251.44 = 45,270.80/x
  3. Step 3: Cross multiply
    129,487.28x = 194,251.44 × 45,270.80
  4. Step 4: Simplify right side
    129,487.28x = 8,793,918,089.95
  5. Step 5: Solve for x
    x = 8,793,918,089.95/129,487.28
  6. Step 6: Final answer
    x = 67,913.37

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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.