Home / 107,723.28-161,617.92-55,169.68

Finding the Fourth Proportional to 107,723.28, 161,617.92 and 55,169.68

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Solution

The fourth proportional to 107,723.28, 161,617.92 and 55,169.68 is: 82,771.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,723.28 : 161,617.92 = 55,169.68 : x
  2. Step 2: Convert to fraction form
    107,723.28/161,617.92 = 55,169.68/x
  3. Step 3: Cross multiply
    107,723.28x = 161,617.92 × 55,169.68
  4. Step 4: Simplify right side
    107,723.28x = 8,916,408,928.67
  5. Step 5: Solve for x
    x = 8,916,408,928.67/107,723.28
  6. Step 6: Final answer
    x = 82,771.42

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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.