Home / 129,768.54-194,652.81-50,919.90

Finding the Fourth Proportional to 129,768.54, 194,652.81 and 50,919.90

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Solution

The fourth proportional to 129,768.54, 194,652.81 and 50,919.90 is: 76,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,768.54 : 194,652.81 = 50,919.90 : x
  2. Step 2: Convert to fraction form
    129,768.54/194,652.81 = 50,919.90/x
  3. Step 3: Cross multiply
    129,768.54x = 194,652.81 × 50,919.90
  4. Step 4: Simplify right side
    129,768.54x = 9,911,701,619.92
  5. Step 5: Solve for x
    x = 9,911,701,619.92/129,768.54
  6. Step 6: Final answer
    x = 76,379.85

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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.