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Finding the Fourth Proportional to 162.76, 244.14 and 81.58

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Solution

The fourth proportional to 162.76, 244.14 and 81.58 is: 122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.76 : 244.14 = 81.58 : x
  2. Step 2: Convert to fraction form
    162.76/244.14 = 81.58/x
  3. Step 3: Cross multiply
    162.76x = 244.14 × 81.58
  4. Step 4: Simplify right side
    162.76x = 19,916.94
  5. Step 5: Solve for x
    x = 19,916.94/162.76
  6. Step 6: Final answer
    x = 122.37

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