Home / 218,186.31-327,314.33-76,072.49

Finding the Fourth Proportional to 218,186.31, 327,314.33 and 76,072.49

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Solution

The fourth proportional to 218,186.31, 327,314.33 and 76,072.49 is: 114,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,186.31 : 327,314.33 = 76,072.49 : x
  2. Step 2: Convert to fraction form
    218,186.31/327,314.33 = 76,072.49/x
  3. Step 3: Cross multiply
    218,186.31x = 327,314.33 × 76,072.49
  4. Step 4: Simplify right side
    218,186.31x = 24,899,616,095.78
  5. Step 5: Solve for x
    x = 24,899,616,095.78/218,186.31
  6. Step 6: Final answer
    x = 114,120.89

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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.