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Finding the Fourth Proportional to 157,982.20, 218,015.49 and 86,362.21

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Solution

The fourth proportional to 157,982.20, 218,015.49 and 86,362.21 is: 119,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,982.20 : 218,015.49 = 86,362.21 : x
  2. Step 2: Convert to fraction form
    157,982.20/218,015.49 = 86,362.21/x
  3. Step 3: Cross multiply
    157,982.20x = 218,015.49 × 86,362.21
  4. Step 4: Simplify right side
    157,982.20x = 18,828,299,530.63
  5. Step 5: Solve for x
    x = 18,828,299,530.63/157,982.20
  6. Step 6: Final answer
    x = 119,179.88

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