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Finding the Fourth Proportional to 103.43, 154.36 and 95.29

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Solution

The fourth proportional to 103.43, 154.36 and 95.29 is: 142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.43 : 154.36 = 95.29 : x
  2. Step 2: Convert to fraction form
    103.43/154.36 = 95.29/x
  3. Step 3: Cross multiply
    103.43x = 154.36 × 95.29
  4. Step 4: Simplify right side
    103.43x = 14,708.19
  5. Step 5: Solve for x
    x = 14,708.19/103.43
  6. Step 6: Final answer
    x = 142.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.