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Finding the Fourth Proportional to 140,079.78, 193,310.55 and 76,418.91

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Solution

The fourth proportional to 140,079.78, 193,310.55 and 76,418.91 is: 105,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,079.78 : 193,310.55 = 76,418.91 : x
  2. Step 2: Convert to fraction form
    140,079.78/193,310.55 = 76,418.91/x
  3. Step 3: Cross multiply
    140,079.78x = 193,310.55 × 76,418.91
  4. Step 4: Simplify right side
    140,079.78x = 14,772,581,522.50
  5. Step 5: Solve for x
    x = 14,772,581,522.50/140,079.78
  6. Step 6: Final answer
    x = 105,458.34

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