Home / 129,919.80-194,733.90-55,027.20

Finding the Fourth Proportional to 129,919.80, 194,733.90 and 55,027.20

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Solution

The fourth proportional to 129,919.80, 194,733.90 and 55,027.20 is: 82,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,919.80 : 194,733.90 = 55,027.20 : x
  2. Step 2: Convert to fraction form
    129,919.80/194,733.90 = 55,027.20/x
  3. Step 3: Cross multiply
    129,919.80x = 194,733.90 × 55,027.20
  4. Step 4: Simplify right side
    129,919.80x = 10,715,661,262.08
  5. Step 5: Solve for x
    x = 10,715,661,262.08/129,919.80
  6. Step 6: Final answer
    x = 82,479.05

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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.