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Finding the Fourth Proportional to 148,798.42, 205,343.30 and 80,816.72

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Solution

The fourth proportional to 148,798.42, 205,343.30 and 80,816.72 is: 111,527.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,798.42 : 205,343.30 = 80,816.72 : x
  2. Step 2: Convert to fraction form
    148,798.42/205,343.30 = 80,816.72/x
  3. Step 3: Cross multiply
    148,798.42x = 205,343.30 × 80,816.72
  4. Step 4: Simplify right side
    148,798.42x = 16,595,171,622.28
  5. Step 5: Solve for x
    x = 16,595,171,622.28/148,798.42
  6. Step 6: Final answer
    x = 111,527.88

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