Home / 143,995.28-215,968.32-38,789.66

Finding the Fourth Proportional to 143,995.28, 215,968.32 and 38,789.66

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Solution

The fourth proportional to 143,995.28, 215,968.32 and 38,789.66 is: 58,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.28 : 215,968.32 = 38,789.66 : x
  2. Step 2: Convert to fraction form
    143,995.28/215,968.32 = 38,789.66/x
  3. Step 3: Cross multiply
    143,995.28x = 215,968.32 × 38,789.66
  4. Step 4: Simplify right side
    143,995.28x = 8,377,337,703.57
  5. Step 5: Solve for x
    x = 8,377,337,703.57/143,995.28
  6. Step 6: Final answer
    x = 58,177.86

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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.