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Finding the Fourth Proportional to 135,744.53, 202,514.57 and 128,396.21

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Solution

The fourth proportional to 135,744.53, 202,514.57 and 128,396.21 is: 191,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,744.53 : 202,514.57 = 128,396.21 : x
  2. Step 2: Convert to fraction form
    135,744.53/202,514.57 = 128,396.21/x
  3. Step 3: Cross multiply
    135,744.53x = 202,514.57 × 128,396.21
  4. Step 4: Simplify right side
    135,744.53x = 26,002,102,615.80
  5. Step 5: Solve for x
    x = 26,002,102,615.80/135,744.53
  6. Step 6: Final answer
    x = 191,551.75

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