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Finding the Fourth Proportional to 106.03, 158.91 and 103.33

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Solution

The fourth proportional to 106.03, 158.91 and 103.33 is: 154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.03 : 158.91 = 103.33 : x
  2. Step 2: Convert to fraction form
    106.03/158.91 = 103.33/x
  3. Step 3: Cross multiply
    106.03x = 158.91 × 103.33
  4. Step 4: Simplify right side
    106.03x = 16,420.17
  5. Step 5: Solve for x
    x = 16,420.17/106.03
  6. Step 6: Final answer
    x = 154.86

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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.