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Finding the Third Proportional to 72,016.50 and 109,019.25

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Solution

The third proportional to 72,016.50 and 109,019.25 is: 165,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,016.50 : 109,019.25 = 109,019.25 : x
  2. Step 2: Convert to fraction form
    72,016.50/109,019.25 = 109,019.25/x
  3. Step 3: Cross multiply
    72,016.50x = 109,019.25 × 109,019.25
  4. Step 4: Simplify right side
    72,016.50x = 11,885,196,870.56
  5. Step 5: Solve for x
    x = 11,885,196,870.56/72,016.50
  6. Step 6: Final answer
    x = 165,034.36

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1.5x scale

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.