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Finding the Fourth Proportional to 148,813.13, 205,362.12 and 81,745.13

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Solution

The fourth proportional to 148,813.13, 205,362.12 and 81,745.13 is: 112,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,813.13 : 205,362.12 = 81,745.13 : x
  2. Step 2: Convert to fraction form
    148,813.13/205,362.12 = 81,745.13/x
  3. Step 3: Cross multiply
    148,813.13x = 205,362.12 × 81,745.13
  4. Step 4: Simplify right side
    148,813.13x = 16,787,352,169.67
  5. Step 5: Solve for x
    x = 16,787,352,169.67/148,813.13
  6. Step 6: Final answer
    x = 112,808.28

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