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Finding the Fourth Proportional to 167,915.40, 231,722.89 and 91,433.31

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Solution

The fourth proportional to 167,915.40, 231,722.89 and 91,433.31 is: 126,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,915.40 : 231,722.89 = 91,433.31 : x
  2. Step 2: Convert to fraction form
    167,915.40/231,722.89 = 91,433.31/x
  3. Step 3: Cross multiply
    167,915.40x = 231,722.89 × 91,433.31
  4. Step 4: Simplify right side
    167,915.40x = 21,187,190,606.88
  5. Step 5: Solve for x
    x = 21,187,190,606.88/167,915.40
  6. Step 6: Final answer
    x = 126,177.77

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