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Finding the Third Proportional to 91,387.75 and 136,320.75

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Solution

The third proportional to 91,387.75 and 136,320.75 is: 203,346.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,387.75 : 136,320.75 = 136,320.75 : x
  2. Step 2: Convert to fraction form
    91,387.75/136,320.75 = 136,320.75/x
  3. Step 3: Cross multiply
    91,387.75x = 136,320.75 × 136,320.75
  4. Step 4: Simplify right side
    91,387.75x = 18,583,346,880.56
  5. Step 5: Solve for x
    x = 18,583,346,880.56/91,387.75
  6. Step 6: Final answer
    x = 203,346.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.