Home / 107,988.60-161,982.82-57,999.88

Finding the Fourth Proportional to 107,988.60, 161,982.82 and 57,999.88

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Solution

The fourth proportional to 107,988.60, 161,982.82 and 57,999.88 is: 86,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,988.60 : 161,982.82 = 57,999.88 : x
  2. Step 2: Convert to fraction form
    107,988.60/161,982.82 = 57,999.88/x
  3. Step 3: Cross multiply
    107,988.60x = 161,982.82 × 57,999.88
  4. Step 4: Simplify right side
    107,988.60x = 9,394,984,122.06
  5. Step 5: Solve for x
    x = 9,394,984,122.06/107,988.60
  6. Step 6: Final answer
    x = 86,999.78

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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.