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Finding the Fourth Proportional to 129,968.20, 195,025.20 and 55,075.60

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Solution

The fourth proportional to 129,968.20, 195,025.20 and 55,075.60 is: 82,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.20 : 195,025.20 = 55,075.60 : x
  2. Step 2: Convert to fraction form
    129,968.20/195,025.20 = 55,075.60/x
  3. Step 3: Cross multiply
    129,968.20x = 195,025.20 × 55,075.60
  4. Step 4: Simplify right side
    129,968.20x = 10,741,129,905.12
  5. Step 5: Solve for x
    x = 10,741,129,905.12/129,968.20
  6. Step 6: Final answer
    x = 82,644.29

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