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Finding the Fourth Proportional to 114.41, 172.46 and 102.67

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Solution

The fourth proportional to 114.41, 172.46 and 102.67 is: 154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.41 : 172.46 = 102.67 : x
  2. Step 2: Convert to fraction form
    114.41/172.46 = 102.67/x
  3. Step 3: Cross multiply
    114.41x = 172.46 × 102.67
  4. Step 4: Simplify right side
    114.41x = 17,706.29
  5. Step 5: Solve for x
    x = 17,706.29/114.41
  6. Step 6: Final answer
    x = 154.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.