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Finding the Third Proportional to 86,316.75 and 131,278.50

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Solution

The third proportional to 86,316.75 and 131,278.50 is: 199,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,316.75 : 131,278.50 = 131,278.50 : x
  2. Step 2: Convert to fraction form
    86,316.75/131,278.50 = 131,278.50/x
  3. Step 3: Cross multiply
    86,316.75x = 131,278.50 × 131,278.50
  4. Step 4: Simplify right side
    86,316.75x = 17,234,044,562.25
  5. Step 5: Solve for x
    x = 17,234,044,562.25/86,316.75
  6. Step 6: Final answer
    x = 199,660.49

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.