Home / 107,683.24-161,557.92-55,129.60

Finding the Fourth Proportional to 107,683.24, 161,557.92 and 55,129.60

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Solution

The fourth proportional to 107,683.24, 161,557.92 and 55,129.60 is: 82,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,683.24 : 161,557.92 = 55,129.60 : x
  2. Step 2: Convert to fraction form
    107,683.24/161,557.92 = 55,129.60/x
  3. Step 3: Cross multiply
    107,683.24x = 161,557.92 × 55,129.60
  4. Step 4: Simplify right side
    107,683.24x = 8,906,623,506.43
  5. Step 5: Solve for x
    x = 8,906,623,506.43/107,683.24
  6. Step 6: Final answer
    x = 82,711.33

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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.