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Finding the Fourth Proportional to 116,213.20, 174,319.80 and 80,783.80

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Solution

The fourth proportional to 116,213.20, 174,319.80 and 80,783.80 is: 121,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,213.20 : 174,319.80 = 80,783.80 : x
  2. Step 2: Convert to fraction form
    116,213.20/174,319.80 = 80,783.80/x
  3. Step 3: Cross multiply
    116,213.20x = 174,319.80 × 80,783.80
  4. Step 4: Simplify right side
    116,213.20x = 14,082,215,859.24
  5. Step 5: Solve for x
    x = 14,082,215,859.24/116,213.20
  6. Step 6: Final answer
    x = 121,175.70

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