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Finding the Fourth Proportional to 109,679.40, 164,519.10 and 92,766.60

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Solution

The fourth proportional to 109,679.40, 164,519.10 and 92,766.60 is: 139,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,679.40 : 164,519.10 = 92,766.60 : x
  2. Step 2: Convert to fraction form
    109,679.40/164,519.10 = 92,766.60/x
  3. Step 3: Cross multiply
    109,679.40x = 164,519.10 × 92,766.60
  4. Step 4: Simplify right side
    109,679.40x = 15,261,877,542.06
  5. Step 5: Solve for x
    x = 15,261,877,542.06/109,679.40
  6. Step 6: Final answer
    x = 139,149.90

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