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Finding the Fourth Proportional to 118.59, 177.83 and 64.47

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Solution

The fourth proportional to 118.59, 177.83 and 64.47 is: 96.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.59 : 177.83 = 64.47 : x
  2. Step 2: Convert to fraction form
    118.59/177.83 = 64.47/x
  3. Step 3: Cross multiply
    118.59x = 177.83 × 64.47
  4. Step 4: Simplify right side
    118.59x = 11,464.38
  5. Step 5: Solve for x
    x = 11,464.38/118.59
  6. Step 6: Final answer
    x = 96.67

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