Home / 107,910.80-161,912.90-57,932.58

Finding the Fourth Proportional to 107,910.80, 161,912.90 and 57,932.58

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Solution

The fourth proportional to 107,910.80, 161,912.90 and 57,932.58 is: 86,923.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,910.80 : 161,912.90 = 57,932.58 : x
  2. Step 2: Convert to fraction form
    107,910.80/161,912.90 = 57,932.58/x
  3. Step 3: Cross multiply
    107,910.80x = 161,912.90 × 57,932.58
  4. Step 4: Simplify right side
    107,910.80x = 9,380,032,032.28
  5. Step 5: Solve for x
    x = 9,380,032,032.28/107,910.80
  6. Step 6: Final answer
    x = 86,923.94

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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.