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Finding the Fourth Proportional to 104,266.80, 156,400.20 and 99,716.40

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Solution

The fourth proportional to 104,266.80, 156,400.20 and 99,716.40 is: 149,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,266.80 : 156,400.20 = 99,716.40 : x
  2. Step 2: Convert to fraction form
    104,266.80/156,400.20 = 99,716.40/x
  3. Step 3: Cross multiply
    104,266.80x = 156,400.20 × 99,716.40
  4. Step 4: Simplify right side
    104,266.80x = 15,595,664,903.28
  5. Step 5: Solve for x
    x = 15,595,664,903.28/104,266.80
  6. Step 6: Final answer
    x = 149,574.60

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