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Finding the Fourth Proportional to 140.63, 211.41 and 112.10

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Solution

The fourth proportional to 140.63, 211.41 and 112.10 is: 168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.63 : 211.41 = 112.10 : x
  2. Step 2: Convert to fraction form
    140.63/211.41 = 112.10/x
  3. Step 3: Cross multiply
    140.63x = 211.41 × 112.10
  4. Step 4: Simplify right side
    140.63x = 23,698.00
  5. Step 5: Solve for x
    x = 23,698.00/140.63
  6. Step 6: Final answer
    x = 168.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.