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Finding the Fourth Proportional to 154,169.78, 231,070.58 and 79,325.78

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Solution

The fourth proportional to 154,169.78, 231,070.58 and 79,325.78 is: 118,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,169.78 : 231,070.58 = 79,325.78 : x
  2. Step 2: Convert to fraction form
    154,169.78/231,070.58 = 79,325.78/x
  3. Step 3: Cross multiply
    154,169.78x = 231,070.58 × 79,325.78
  4. Step 4: Simplify right side
    154,169.78x = 18,329,853,993.55
  5. Step 5: Solve for x
    x = 18,329,853,993.55/154,169.78
  6. Step 6: Final answer
    x = 118,893.95

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