Home / 129,379.35-194,015.79-49,446.84

Finding the Fourth Proportional to 129,379.35, 194,015.79 and 49,446.84

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Solution

The fourth proportional to 129,379.35, 194,015.79 and 49,446.84 is: 74,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,379.35 : 194,015.79 = 49,446.84 : x
  2. Step 2: Convert to fraction form
    129,379.35/194,015.79 = 49,446.84/x
  3. Step 3: Cross multiply
    129,379.35x = 194,015.79 × 49,446.84
  4. Step 4: Simplify right side
    129,379.35x = 9,593,467,725.60
  5. Step 5: Solve for x
    x = 9,593,467,725.60/129,379.35
  6. Step 6: Final answer
    x = 74,149.91

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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.