Home / 218,104.36-327,180-91,757.48

Finding the Fourth Proportional to 218,104.36, 327,180 and 91,757.48

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Solution

The fourth proportional to 218,104.36, 327,180 and 91,757.48 is: 137,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,104.36 : 327,180 = 91,757.48 : x
  2. Step 2: Convert to fraction form
    218,104.36/327,180 = 91,757.48/x
  3. Step 3: Cross multiply
    218,104.36x = 327,180 × 91,757.48
  4. Step 4: Simplify right side
    218,104.36x = 30,021,212,306.40
  5. Step 5: Solve for x
    x = 30,021,212,306.40/218,104.36
  6. Step 6: Final answer
    x = 137,646.09

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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.