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Finding the Fourth Proportional to 106,961.76, 159,792.58 and 69,214.32

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Solution

The fourth proportional to 106,961.76, 159,792.58 and 69,214.32 is: 103,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,961.76 : 159,792.58 = 69,214.32 : x
  2. Step 2: Convert to fraction form
    106,961.76/159,792.58 = 69,214.32/x
  3. Step 3: Cross multiply
    106,961.76x = 159,792.58 × 69,214.32
  4. Step 4: Simplify right side
    106,961.76x = 11,059,934,765.75
  5. Step 5: Solve for x
    x = 11,059,934,765.75/106,961.76
  6. Step 6: Final answer
    x = 103,400.83

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