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Finding the Fourth Proportional to 199,302.28, 298,888.42 and 66,146.80

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Solution

The fourth proportional to 199,302.28, 298,888.42 and 66,146.80 is: 99,198.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,302.28 : 298,888.42 = 66,146.80 : x
  2. Step 2: Convert to fraction form
    199,302.28/298,888.42 = 66,146.80/x
  3. Step 3: Cross multiply
    199,302.28x = 298,888.42 × 66,146.80
  4. Step 4: Simplify right side
    199,302.28x = 19,770,512,540.06
  5. Step 5: Solve for x
    x = 19,770,512,540.06/199,302.28
  6. Step 6: Final answer
    x = 99,198.63

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