Home / 107,699.38-161,582.04-55,146.04

Finding the Fourth Proportional to 107,699.38, 161,582.04 and 55,146.04

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Solution

The fourth proportional to 107,699.38, 161,582.04 and 55,146.04 is: 82,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,699.38 : 161,582.04 = 55,146.04 : x
  2. Step 2: Convert to fraction form
    107,699.38/161,582.04 = 55,146.04/x
  3. Step 3: Cross multiply
    107,699.38x = 161,582.04 × 55,146.04
  4. Step 4: Simplify right side
    107,699.38x = 8,910,609,641.12
  5. Step 5: Solve for x
    x = 8,910,609,641.12/107,699.38
  6. Step 6: Final answer
    x = 82,735.94

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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.