Home / 107,678.72-161,551.17-55,125.11

Finding the Fourth Proportional to 107,678.72, 161,551.17 and 55,125.11

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Solution

The fourth proportional to 107,678.72, 161,551.17 and 55,125.11 is: 82,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,678.72 : 161,551.17 = 55,125.11 : x
  2. Step 2: Convert to fraction form
    107,678.72/161,551.17 = 55,125.11/x
  3. Step 3: Cross multiply
    107,678.72x = 161,551.17 × 55,125.11
  4. Step 4: Simplify right side
    107,678.72x = 8,905,526,016.88
  5. Step 5: Solve for x
    x = 8,905,526,016.88/107,678.72
  6. Step 6: Final answer
    x = 82,704.61

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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.