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Finding the Fourth Proportional to 148,431.78, 204,813.99 and 90,258.84

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Solution

The fourth proportional to 148,431.78, 204,813.99 and 90,258.84 is: 124,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,431.78 : 204,813.99 = 90,258.84 : x
  2. Step 2: Convert to fraction form
    148,431.78/204,813.99 = 90,258.84/x
  3. Step 3: Cross multiply
    148,431.78x = 204,813.99 × 90,258.84
  4. Step 4: Simplify right side
    148,431.78x = 18,486,273,153.17
  5. Step 5: Solve for x
    x = 18,486,273,153.17/148,431.78
  6. Step 6: Final answer
    x = 124,543.90

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