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Finding the Third Proportional to 39,205 and 85,916

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Solution

The third proportional to 39,205 and 85,916 is: 188,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205 : 85,916 = 85,916 : x
  2. Step 2: Convert to fraction form
    39,205/85,916 = 85,916/x
  3. Step 3: Cross multiply
    39,205x = 85,916 × 85,916
  4. Step 4: Simplify right side
    39,205x = 7,381,559,056
  5. Step 5: Solve for x
    x = 7,381,559,056/39,205
  6. Step 6: Final answer
    x = 188,281.06

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.