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Finding the Third Proportional to 91,645 and 141,899

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Solution

The third proportional to 91,645 and 141,899 is: 219,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,645 : 141,899 = 141,899 : x
  2. Step 2: Convert to fraction form
    91,645/141,899 = 141,899/x
  3. Step 3: Cross multiply
    91,645x = 141,899 × 141,899
  4. Step 4: Simplify right side
    91,645x = 20,135,326,201
  5. Step 5: Solve for x
    x = 20,135,326,201/91,645
  6. Step 6: Final answer
    x = 219,710.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.