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Finding the Fourth Proportional to 139,908.26, 193,068.50 and 76,244.78

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Solution

The fourth proportional to 139,908.26, 193,068.50 and 76,244.78 is: 105,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,908.26 : 193,068.50 = 76,244.78 : x
  2. Step 2: Convert to fraction form
    139,908.26/193,068.50 = 76,244.78/x
  3. Step 3: Cross multiply
    139,908.26x = 193,068.50 × 76,244.78
  4. Step 4: Simplify right side
    139,908.26x = 14,720,465,307.43
  5. Step 5: Solve for x
    x = 14,720,465,307.43/139,908.26
  6. Step 6: Final answer
    x = 105,215.13

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