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Finding the Fourth Proportional to 173.18, 259.81 and 57.63

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Solution

The fourth proportional to 173.18, 259.81 and 57.63 is: 86.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.18 : 259.81 = 57.63 : x
  2. Step 2: Convert to fraction form
    173.18/259.81 = 57.63/x
  3. Step 3: Cross multiply
    173.18x = 259.81 × 57.63
  4. Step 4: Simplify right side
    173.18x = 14,972.85
  5. Step 5: Solve for x
    x = 14,972.85/173.18
  6. Step 6: Final answer
    x = 86.46

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