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Finding the Fourth Proportional to 109,913.80, 164,870.70 and 96,791.80

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Solution

The fourth proportional to 109,913.80, 164,870.70 and 96,791.80 is: 145,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,913.80 : 164,870.70 = 96,791.80 : x
  2. Step 2: Convert to fraction form
    109,913.80/164,870.70 = 96,791.80/x
  3. Step 3: Cross multiply
    109,913.80x = 164,870.70 × 96,791.80
  4. Step 4: Simplify right side
    109,913.80x = 15,958,131,820.26
  5. Step 5: Solve for x
    x = 15,958,131,820.26/109,913.80
  6. Step 6: Final answer
    x = 145,187.70

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