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Finding the Fourth Proportional to 203,491.54, 280,815.36 and 112,847.68

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Solution

The fourth proportional to 203,491.54, 280,815.36 and 112,847.68 is: 155,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,491.54 : 280,815.36 = 112,847.68 : x
  2. Step 2: Convert to fraction form
    203,491.54/280,815.36 = 112,847.68/x
  3. Step 3: Cross multiply
    203,491.54x = 280,815.36 × 112,847.68
  4. Step 4: Simplify right side
    203,491.54x = 31,689,361,812.21
  5. Step 5: Solve for x
    x = 31,689,361,812.21/203,491.54
  6. Step 6: Final answer
    x = 155,728.15

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