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Finding the Fourth Proportional to 101,843.25, 140,543.69 and 57,131.25

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Solution

The fourth proportional to 101,843.25, 140,543.69 and 57,131.25 is: 78,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,843.25 : 140,543.69 = 57,131.25 : x
  2. Step 2: Convert to fraction form
    101,843.25/140,543.69 = 57,131.25/x
  3. Step 3: Cross multiply
    101,843.25x = 140,543.69 × 57,131.25
  4. Step 4: Simplify right side
    101,843.25x = 8,029,436,403.66
  5. Step 5: Solve for x
    x = 8,029,436,403.66/101,843.25
  6. Step 6: Final answer
    x = 78,841.13

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