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Finding the Fourth Proportional to 144.63, 199.38 and 94.68

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Solution

The fourth proportional to 144.63, 199.38 and 94.68 is: 130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.63 : 199.38 = 94.68 : x
  2. Step 2: Convert to fraction form
    144.63/199.38 = 94.68/x
  3. Step 3: Cross multiply
    144.63x = 199.38 × 94.68
  4. Step 4: Simplify right side
    144.63x = 18,877.30
  5. Step 5: Solve for x
    x = 18,877.30/144.63
  6. Step 6: Final answer
    x = 130.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.