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Finding the Fourth Proportional to 109,747.80, 164,621.70 and 74,496.60

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Solution

The fourth proportional to 109,747.80, 164,621.70 and 74,496.60 is: 111,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.80 : 164,621.70 = 74,496.60 : x
  2. Step 2: Convert to fraction form
    109,747.80/164,621.70 = 74,496.60/x
  3. Step 3: Cross multiply
    109,747.80x = 164,621.70 × 74,496.60
  4. Step 4: Simplify right side
    109,747.80x = 12,263,756,936.22
  5. Step 5: Solve for x
    x = 12,263,756,936.22/109,747.80
  6. Step 6: Final answer
    x = 111,744.90

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