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Finding the Fourth Proportional to 106.41, 147.22 and 93.49

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Solution

The fourth proportional to 106.41, 147.22 and 93.49 is: 129.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.41 : 147.22 = 93.49 : x
  2. Step 2: Convert to fraction form
    106.41/147.22 = 93.49/x
  3. Step 3: Cross multiply
    106.41x = 147.22 × 93.49
  4. Step 4: Simplify right side
    106.41x = 13,763.00
  5. Step 5: Solve for x
    x = 13,763.00/106.41
  6. Step 6: Final answer
    x = 129.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.