Home / 142,974.76-214,380.06-54,171.68

Finding the Fourth Proportional to 142,974.76, 214,380.06 and 54,171.68

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Solution

The fourth proportional to 142,974.76, 214,380.06 and 54,171.68 is: 81,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.76 : 214,380.06 = 54,171.68 : x
  2. Step 2: Convert to fraction form
    142,974.76/214,380.06 = 54,171.68/x
  3. Step 3: Cross multiply
    142,974.76x = 214,380.06 × 54,171.68
  4. Step 4: Simplify right side
    142,974.76x = 11,613,328,008.70
  5. Step 5: Solve for x
    x = 11,613,328,008.70/142,974.76
  6. Step 6: Final answer
    x = 81,226.42

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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.