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Finding the Third Proportional to 71,968.50 and 112,640.63

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Solution

The third proportional to 71,968.50 and 112,640.63 is: 176,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,968.50 : 112,640.63 = 112,640.63 : x
  2. Step 2: Convert to fraction form
    71,968.50/112,640.63 = 112,640.63/x
  3. Step 3: Cross multiply
    71,968.50x = 112,640.63 × 112,640.63
  4. Step 4: Simplify right side
    71,968.50x = 12,687,910,400.39
  5. Step 5: Solve for x
    x = 12,687,910,400.39/71,968.50
  6. Step 6: Final answer
    x = 176,298.11

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.