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Finding the Fourth Proportional to 426,138.96, 639,042.32 and 159,754.13

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Solution

The fourth proportional to 426,138.96, 639,042.32 and 159,754.13 is: 239,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,138.96 : 639,042.32 = 159,754.13 : x
  2. Step 2: Convert to fraction form
    426,138.96/639,042.32 = 159,754.13/x
  3. Step 3: Cross multiply
    426,138.96x = 639,042.32 × 159,754.13
  4. Step 4: Simplify right side
    426,138.96x = 102,089,645,870.80
  5. Step 5: Solve for x
    x = 102,089,645,870.80/426,138.96
  6. Step 6: Final answer
    x = 239,568.91

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