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Finding the Fourth Proportional to 136,502.80, 188,490.24 and 85,601.20

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Solution

The fourth proportional to 136,502.80, 188,490.24 and 85,601.20 is: 118,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,502.80 : 188,490.24 = 85,601.20 : x
  2. Step 2: Convert to fraction form
    136,502.80/188,490.24 = 85,601.20/x
  3. Step 3: Cross multiply
    136,502.80x = 188,490.24 × 85,601.20
  4. Step 4: Simplify right side
    136,502.80x = 16,134,990,732.29
  5. Step 5: Solve for x
    x = 16,134,990,732.29/136,502.80
  6. Step 6: Final answer
    x = 118,202.64

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