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Finding the Fourth Proportional to 167,771.78, 231,522.12 and 91,288.29

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Solution

The fourth proportional to 167,771.78, 231,522.12 and 91,288.29 is: 125,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,771.78 : 231,522.12 = 91,288.29 : x
  2. Step 2: Convert to fraction form
    167,771.78/231,522.12 = 91,288.29/x
  3. Step 3: Cross multiply
    167,771.78x = 231,522.12 × 91,288.29
  4. Step 4: Simplify right side
    167,771.78x = 21,135,258,431.97
  5. Step 5: Solve for x
    x = 21,135,258,431.97/167,771.78
  6. Step 6: Final answer
    x = 125,976.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.