Home / 143,864.30-215,614.20-54,999.20

Finding the Fourth Proportional to 143,864.30, 215,614.20 and 54,999.20

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Solution

The fourth proportional to 143,864.30, 215,614.20 and 54,999.20 is: 82,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.30 : 215,614.20 = 54,999.20 : x
  2. Step 2: Convert to fraction form
    143,864.30/215,614.20 = 54,999.20/x
  3. Step 3: Cross multiply
    143,864.30x = 215,614.20 × 54,999.20
  4. Step 4: Simplify right side
    143,864.30x = 11,858,608,508.64
  5. Step 5: Solve for x
    x = 11,858,608,508.64/143,864.30
  6. Step 6: Final answer
    x = 82,429.13

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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.