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Finding the Third Proportional to 108,354 and 143,811

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Solution

The third proportional to 108,354 and 143,811 is: 190,870.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,354 : 143,811 = 143,811 : x
  2. Step 2: Convert to fraction form
    108,354/143,811 = 143,811/x
  3. Step 3: Cross multiply
    108,354x = 143,811 × 143,811
  4. Step 4: Simplify right side
    108,354x = 20,681,603,721
  5. Step 5: Solve for x
    x = 20,681,603,721/108,354
  6. Step 6: Final answer
    x = 190,870.70

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.