Home / 107,921.82-161,790.40-41,409.68

Finding the Fourth Proportional to 107,921.82, 161,790.40 and 41,409.68

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Solution

The fourth proportional to 107,921.82, 161,790.40 and 41,409.68 is: 62,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,921.82 : 161,790.40 = 41,409.68 : x
  2. Step 2: Convert to fraction form
    107,921.82/161,790.40 = 41,409.68/x
  3. Step 3: Cross multiply
    107,921.82x = 161,790.40 × 41,409.68
  4. Step 4: Simplify right side
    107,921.82x = 6,699,687,675.07
  5. Step 5: Solve for x
    x = 6,699,687,675.07/107,921.82
  6. Step 6: Final answer
    x = 62,079.09

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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.