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Finding the Fourth Proportional to 96,416.80, 144,625.20 and 86,599.60

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Solution

The fourth proportional to 96,416.80, 144,625.20 and 86,599.60 is: 129,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,416.80 : 144,625.20 = 86,599.60 : x
  2. Step 2: Convert to fraction form
    96,416.80/144,625.20 = 86,599.60/x
  3. Step 3: Cross multiply
    96,416.80x = 144,625.20 × 86,599.60
  4. Step 4: Simplify right side
    96,416.80x = 12,524,484,469.92
  5. Step 5: Solve for x
    x = 12,524,484,469.92/96,416.80
  6. Step 6: Final answer
    x = 129,899.40

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