Home / 129,780.62-194,669.68-41,034.12

Finding the Fourth Proportional to 129,780.62, 194,669.68 and 41,034.12

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Solution

The fourth proportional to 129,780.62, 194,669.68 and 41,034.12 is: 61,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,780.62 : 194,669.68 = 41,034.12 : x
  2. Step 2: Convert to fraction form
    129,780.62/194,669.68 = 41,034.12/x
  3. Step 3: Cross multiply
    129,780.62x = 194,669.68 × 41,034.12
  4. Step 4: Simplify right side
    129,780.62x = 7,988,099,009.48
  5. Step 5: Solve for x
    x = 7,988,099,009.48/129,780.62
  6. Step 6: Final answer
    x = 61,550.78

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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.