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Finding the Fourth Proportional to 168,821.70, 253,232.55 and 129,455.70

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Solution

The fourth proportional to 168,821.70, 253,232.55 and 129,455.70 is: 194,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,821.70 : 253,232.55 = 129,455.70 : x
  2. Step 2: Convert to fraction form
    168,821.70/253,232.55 = 129,455.70/x
  3. Step 3: Cross multiply
    168,821.70x = 253,232.55 × 129,455.70
  4. Step 4: Simplify right side
    168,821.70x = 32,782,397,023.04
  5. Step 5: Solve for x
    x = 32,782,397,023.04/168,821.70
  6. Step 6: Final answer
    x = 194,183.55

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