Home / 129,425.31-194,184.68-45,197.87

Finding the Fourth Proportional to 129,425.31, 194,184.68 and 45,197.87

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Solution

The fourth proportional to 129,425.31, 194,184.68 and 45,197.87 is: 67,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,425.31 : 194,184.68 = 45,197.87 : x
  2. Step 2: Convert to fraction form
    129,425.31/194,184.68 = 45,197.87/x
  3. Step 3: Cross multiply
    129,425.31x = 194,184.68 × 45,197.87
  4. Step 4: Simplify right side
    129,425.31x = 8,776,732,725.72
  5. Step 5: Solve for x
    x = 8,776,732,725.72/129,425.31
  6. Step 6: Final answer
    x = 67,813.11

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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.