Home / 218,531.75-327,992.31-111,988.26

Finding the Fourth Proportional to 218,531.75, 327,992.31 and 111,988.26

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Solution

The fourth proportional to 218,531.75, 327,992.31 and 111,988.26 is: 168,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,531.75 : 327,992.31 = 111,988.26 : x
  2. Step 2: Convert to fraction form
    218,531.75/327,992.31 = 111,988.26/x
  3. Step 3: Cross multiply
    218,531.75x = 327,992.31 × 111,988.26
  4. Step 4: Simplify right side
    218,531.75x = 36,731,288,090.28
  5. Step 5: Solve for x
    x = 36,731,288,090.28/218,531.75
  6. Step 6: Final answer
    x = 168,082.16

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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.