Home / 143,785.35-215,678.03-132,959.70

Finding the Fourth Proportional to 143,785.35, 215,678.03 and 132,959.70

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Solution

The fourth proportional to 143,785.35, 215,678.03 and 132,959.70 is: 199,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,785.35 : 215,678.03 = 132,959.70 : x
  2. Step 2: Convert to fraction form
    143,785.35/215,678.03 = 132,959.70/x
  3. Step 3: Cross multiply
    143,785.35x = 215,678.03 × 132,959.70
  4. Step 4: Simplify right side
    143,785.35x = 28,676,485,500.59
  5. Step 5: Solve for x
    x = 28,676,485,500.59/143,785.35
  6. Step 6: Final answer
    x = 199,439.55

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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.