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Finding the Fourth Proportional to 110,422.80, 165,634.20 and 55,126.80

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Solution

The fourth proportional to 110,422.80, 165,634.20 and 55,126.80 is: 82,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,422.80 : 165,634.20 = 55,126.80 : x
  2. Step 2: Convert to fraction form
    110,422.80/165,634.20 = 55,126.80/x
  3. Step 3: Cross multiply
    110,422.80x = 165,634.20 × 55,126.80
  4. Step 4: Simplify right side
    110,422.80x = 9,130,883,416.56
  5. Step 5: Solve for x
    x = 9,130,883,416.56/110,422.80
  6. Step 6: Final answer
    x = 82,690.20

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