Home / 143,099.96-214,654.49-71,983.73

Finding the Fourth Proportional to 143,099.96, 214,654.49 and 71,983.73

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Solution

The fourth proportional to 143,099.96, 214,654.49 and 71,983.73 is: 107,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,099.96 : 214,654.49 = 71,983.73 : x
  2. Step 2: Convert to fraction form
    143,099.96/214,654.49 = 71,983.73/x
  3. Step 3: Cross multiply
    143,099.96x = 214,654.49 × 71,983.73
  4. Step 4: Simplify right side
    143,099.96x = 15,451,629,418.26
  5. Step 5: Solve for x
    x = 15,451,629,418.26/143,099.96
  6. Step 6: Final answer
    x = 107,977.88

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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.