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Finding the Fourth Proportional to 116,819.60, 175,229.40 and 66,880.40

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Solution

The fourth proportional to 116,819.60, 175,229.40 and 66,880.40 is: 100,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,819.60 : 175,229.40 = 66,880.40 : x
  2. Step 2: Convert to fraction form
    116,819.60/175,229.40 = 66,880.40/x
  3. Step 3: Cross multiply
    116,819.60x = 175,229.40 × 66,880.40
  4. Step 4: Simplify right side
    116,819.60x = 11,719,412,363.76
  5. Step 5: Solve for x
    x = 11,719,412,363.76/116,819.60
  6. Step 6: Final answer
    x = 100,320.60

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