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Finding the Third Proportional to 91,390 and 133,197

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Solution

The third proportional to 91,390 and 133,197 is: 194,128.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390 : 133,197 = 133,197 : x
  2. Step 2: Convert to fraction form
    91,390/133,197 = 133,197/x
  3. Step 3: Cross multiply
    91,390x = 133,197 × 133,197
  4. Step 4: Simplify right side
    91,390x = 17,741,440,809
  5. Step 5: Solve for x
    x = 17,741,440,809/91,390
  6. Step 6: Final answer
    x = 194,128.91

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.