Home / 129,980.72-194,982.03-45,732.02

Finding the Fourth Proportional to 129,980.72, 194,982.03 and 45,732.02

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Solution

The fourth proportional to 129,980.72, 194,982.03 and 45,732.02 is: 68,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,980.72 : 194,982.03 = 45,732.02 : x
  2. Step 2: Convert to fraction form
    129,980.72/194,982.03 = 45,732.02/x
  3. Step 3: Cross multiply
    129,980.72x = 194,982.03 × 45,732.02
  4. Step 4: Simplify right side
    129,980.72x = 8,916,921,120.69
  5. Step 5: Solve for x
    x = 8,916,921,120.69/129,980.72
  6. Step 6: Final answer
    x = 68,601.87

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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.