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Finding the Fourth Proportional to 68,404.20, 102,606.30 and 67,237.80

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Solution

The fourth proportional to 68,404.20, 102,606.30 and 67,237.80 is: 100,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,404.20 : 102,606.30 = 67,237.80 : x
  2. Step 2: Convert to fraction form
    68,404.20/102,606.30 = 67,237.80/x
  3. Step 3: Cross multiply
    68,404.20x = 102,606.30 × 67,237.80
  4. Step 4: Simplify right side
    68,404.20x = 6,899,021,878.14
  5. Step 5: Solve for x
    x = 6,899,021,878.14/68,404.20
  6. Step 6: Final answer
    x = 100,856.70

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