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Finding the Fourth Proportional to 87,144.89, 130,717.34 and 60,900.89

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Solution

The fourth proportional to 87,144.89, 130,717.34 and 60,900.89 is: 91,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144.89 : 130,717.34 = 60,900.89 : x
  2. Step 2: Convert to fraction form
    87,144.89/130,717.34 = 60,900.89/x
  3. Step 3: Cross multiply
    87,144.89x = 130,717.34 × 60,900.89
  4. Step 4: Simplify right side
    87,144.89x = 7,960,802,039.93
  5. Step 5: Solve for x
    x = 7,960,802,039.93/87,144.89
  6. Step 6: Final answer
    x = 91,351.34

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