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Finding the Fourth Proportional to 198,855.88, 274,421.15 and 109,431.88

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Solution

The fourth proportional to 198,855.88, 274,421.15 and 109,431.88 is: 151,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,855.88 : 274,421.15 = 109,431.88 : x
  2. Step 2: Convert to fraction form
    198,855.88/274,421.15 = 109,431.88/x
  3. Step 3: Cross multiply
    198,855.88x = 274,421.15 × 109,431.88
  4. Step 4: Simplify right side
    198,855.88x = 30,030,421,257.74
  5. Step 5: Solve for x
    x = 30,030,421,257.74/198,855.88
  6. Step 6: Final answer
    x = 151,016.01

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