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Finding the Fourth Proportional to 133,280.30, 200,029.80 and 128,906.30

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Solution

The fourth proportional to 133,280.30, 200,029.80 and 128,906.30 is: 193,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,280.30 : 200,029.80 = 128,906.30 : x
  2. Step 2: Convert to fraction form
    133,280.30/200,029.80 = 128,906.30/x
  3. Step 3: Cross multiply
    133,280.30x = 200,029.80 × 128,906.30
  4. Step 4: Simplify right side
    133,280.30x = 25,785,101,407.74
  5. Step 5: Solve for x
    x = 25,785,101,407.74/133,280.30
  6. Step 6: Final answer
    x = 193,465.21

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