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Finding the Third Proportional to 72,701 and 106,651

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Solution

The third proportional to 72,701 and 106,651 is: 156,455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,701 : 106,651 = 106,651 : x
  2. Step 2: Convert to fraction form
    72,701/106,651 = 106,651/x
  3. Step 3: Cross multiply
    72,701x = 106,651 × 106,651
  4. Step 4: Simplify right side
    72,701x = 11,374,435,801
  5. Step 5: Solve for x
    x = 11,374,435,801/72,701
  6. Step 6: Final answer
    x = 156,455.01

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.