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Finding the Third Proportional to 85,993 and 129,493.50

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Solution

The third proportional to 85,993 and 129,493.50 is: 194,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993 : 129,493.50 = 129,493.50 : x
  2. Step 2: Convert to fraction form
    85,993/129,493.50 = 129,493.50/x
  3. Step 3: Cross multiply
    85,993x = 129,493.50 × 129,493.50
  4. Step 4: Simplify right side
    85,993x = 16,768,566,542.25
  5. Step 5: Solve for x
    x = 16,768,566,542.25/85,993
  6. Step 6: Final answer
    x = 194,999.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.