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Finding the Fourth Proportional to 159.17, 239.05 and 98.72

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Solution

The fourth proportional to 159.17, 239.05 and 98.72 is: 148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.17 : 239.05 = 98.72 : x
  2. Step 2: Convert to fraction form
    159.17/239.05 = 98.72/x
  3. Step 3: Cross multiply
    159.17x = 239.05 × 98.72
  4. Step 4: Simplify right side
    159.17x = 23,598.84
  5. Step 5: Solve for x
    x = 23,598.84/159.17
  6. Step 6: Final answer
    x = 148.27

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