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Finding the Third Proportional to 101.04 and 122.77

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Solution

The third proportional to 101.04 and 122.77 is: 149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.04 : 122.77 = 122.77 : x
  2. Step 2: Convert to fraction form
    101.04/122.77 = 122.77/x
  3. Step 3: Cross multiply
    101.04x = 122.77 × 122.77
  4. Step 4: Simplify right side
    101.04x = 15,071.40
  5. Step 5: Solve for x
    x = 15,071.40/101.04
  6. Step 6: Final answer
    x = 149.16

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.