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Finding the Third Proportional to 85,788.50 and 129,313.50

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Solution

The third proportional to 85,788.50 and 129,313.50 is: 194,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,788.50 : 129,313.50 = 129,313.50 : x
  2. Step 2: Convert to fraction form
    85,788.50/129,313.50 = 129,313.50/x
  3. Step 3: Cross multiply
    85,788.50x = 129,313.50 × 129,313.50
  4. Step 4: Simplify right side
    85,788.50x = 16,721,981,282.25
  5. Step 5: Solve for x
    x = 16,721,981,282.25/85,788.50
  6. Step 6: Final answer
    x = 194,921.01

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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.