Home / 107,869.20-161,777.88-55,251.60

Finding the Fourth Proportional to 107,869.20, 161,777.88 and 55,251.60

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Solution

The fourth proportional to 107,869.20, 161,777.88 and 55,251.60 is: 82,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,869.20 : 161,777.88 = 55,251.60 : x
  2. Step 2: Convert to fraction form
    107,869.20/161,777.88 = 55,251.60/x
  3. Step 3: Cross multiply
    107,869.20x = 161,777.88 × 55,251.60
  4. Step 4: Simplify right side
    107,869.20x = 8,938,486,714.61
  5. Step 5: Solve for x
    x = 8,938,486,714.61/107,869.20
  6. Step 6: Final answer
    x = 82,864.12

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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.