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Finding the Fourth Proportional to 119.61, 164.84 and 98.76

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Solution

The fourth proportional to 119.61, 164.84 and 98.76 is: 136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.61 : 164.84 = 98.76 : x
  2. Step 2: Convert to fraction form
    119.61/164.84 = 98.76/x
  3. Step 3: Cross multiply
    119.61x = 164.84 × 98.76
  4. Step 4: Simplify right side
    119.61x = 16,279.60
  5. Step 5: Solve for x
    x = 16,279.60/119.61
  6. Step 6: Final answer
    x = 136.11

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