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Finding the Fourth Proportional to 102,257.88, 153,310.32 and 68,884.28

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Solution

The fourth proportional to 102,257.88, 153,310.32 and 68,884.28 is: 103,274.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,257.88 : 153,310.32 = 68,884.28 : x
  2. Step 2: Convert to fraction form
    102,257.88/153,310.32 = 68,884.28/x
  3. Step 3: Cross multiply
    102,257.88x = 153,310.32 × 68,884.28
  4. Step 4: Simplify right side
    102,257.88x = 10,560,671,009.77
  5. Step 5: Solve for x
    x = 10,560,671,009.77/102,257.88
  6. Step 6: Final answer
    x = 103,274.89

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