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Finding the Fourth Proportional to 140,171.13, 193,415.24 and 78,908.48

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Solution

The fourth proportional to 140,171.13, 193,415.24 and 78,908.48 is: 108,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,171.13 : 193,415.24 = 78,908.48 : x
  2. Step 2: Convert to fraction form
    140,171.13/193,415.24 = 78,908.48/x
  3. Step 3: Cross multiply
    140,171.13x = 193,415.24 × 78,908.48
  4. Step 4: Simplify right side
    140,171.13x = 15,262,102,552.74
  5. Step 5: Solve for x
    x = 15,262,102,552.74/140,171.13
  6. Step 6: Final answer
    x = 108,881.92

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