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Finding the Fourth Proportional to 216,662.03, 324,816.98 and 90,396.39

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Solution

The fourth proportional to 216,662.03, 324,816.98 and 90,396.39 is: 135,521.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,662.03 : 324,816.98 = 90,396.39 : x
  2. Step 2: Convert to fraction form
    216,662.03/324,816.98 = 90,396.39/x
  3. Step 3: Cross multiply
    216,662.03x = 324,816.98 × 90,396.39
  4. Step 4: Simplify right side
    216,662.03x = 29,362,281,950.72
  5. Step 5: Solve for x
    x = 29,362,281,950.72/216,662.03
  6. Step 6: Final answer
    x = 135,521.13

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