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Finding the Fourth Proportional to 96,905.60, 145,358.40 and 75,910.40

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Solution

The fourth proportional to 96,905.60, 145,358.40 and 75,910.40 is: 113,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,905.60 : 145,358.40 = 75,910.40 : x
  2. Step 2: Convert to fraction form
    96,905.60/145,358.40 = 75,910.40/x
  3. Step 3: Cross multiply
    96,905.60x = 145,358.40 × 75,910.40
  4. Step 4: Simplify right side
    96,905.60x = 11,034,214,287.36
  5. Step 5: Solve for x
    x = 11,034,214,287.36/96,905.60
  6. Step 6: Final answer
    x = 113,865.60

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