Home / 129,845.07-194,757.87-45,605.97

Finding the Fourth Proportional to 129,845.07, 194,757.87 and 45,605.97

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Solution

The fourth proportional to 129,845.07, 194,757.87 and 45,605.97 is: 68,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845.07 : 194,757.87 = 45,605.97 : x
  2. Step 2: Convert to fraction form
    129,845.07/194,757.87 = 45,605.97/x
  3. Step 3: Cross multiply
    129,845.07x = 194,757.87 × 45,605.97
  4. Step 4: Simplify right side
    129,845.07x = 8,882,121,676.87
  5. Step 5: Solve for x
    x = 8,882,121,676.87/129,845.07
  6. Step 6: Final answer
    x = 68,405.54

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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.