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Finding the Fourth Proportional to 140.56, 211.08 and 116.56

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Solution

The fourth proportional to 140.56, 211.08 and 116.56 is: 175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.56 : 211.08 = 116.56 : x
  2. Step 2: Convert to fraction form
    140.56/211.08 = 116.56/x
  3. Step 3: Cross multiply
    140.56x = 211.08 × 116.56
  4. Step 4: Simplify right side
    140.56x = 24,603.48
  5. Step 5: Solve for x
    x = 24,603.48/140.56
  6. Step 6: Final answer
    x = 175.04

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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.