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Finding the Fourth Proportional to 155,721.99, 214,896.33 and 84,102.03

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Solution

The fourth proportional to 155,721.99, 214,896.33 and 84,102.03 is: 116,060.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,721.99 : 214,896.33 = 84,102.03 : x
  2. Step 2: Convert to fraction form
    155,721.99/214,896.33 = 84,102.03/x
  3. Step 3: Cross multiply
    155,721.99x = 214,896.33 × 84,102.03
  4. Step 4: Simplify right side
    155,721.99x = 18,073,217,592.55
  5. Step 5: Solve for x
    x = 18,073,217,592.55/155,721.99
  6. Step 6: Final answer
    x = 116,060.79

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