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Finding the Third Proportional to 91,878 and 145,737

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Solution

The third proportional to 91,878 and 145,737 is: 231,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,878 : 145,737 = 145,737 : x
  2. Step 2: Convert to fraction form
    91,878/145,737 = 145,737/x
  3. Step 3: Cross multiply
    91,878x = 145,737 × 145,737
  4. Step 4: Simplify right side
    91,878x = 21,239,273,169
  5. Step 5: Solve for x
    x = 21,239,273,169/91,878
  6. Step 6: Final answer
    x = 231,168.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.