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Finding the Fourth Proportional to 159,682.74, 220,359.20 and 87,086.49

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Solution

The fourth proportional to 159,682.74, 220,359.20 and 87,086.49 is: 120,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,682.74 : 220,359.20 = 87,086.49 : x
  2. Step 2: Convert to fraction form
    159,682.74/220,359.20 = 87,086.49/x
  3. Step 3: Cross multiply
    159,682.74x = 220,359.20 × 87,086.49
  4. Step 4: Simplify right side
    159,682.74x = 19,190,308,831.78
  5. Step 5: Solve for x
    x = 19,190,308,831.78/159,682.74
  6. Step 6: Final answer
    x = 120,177.73

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