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Finding the Third Proportional to 90,076.50 and 135,114.75

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Solution

The third proportional to 90,076.50 and 135,114.75 is: 202,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,076.50 : 135,114.75 = 135,114.75 : x
  2. Step 2: Convert to fraction form
    90,076.50/135,114.75 = 135,114.75/x
  3. Step 3: Cross multiply
    90,076.50x = 135,114.75 × 135,114.75
  4. Step 4: Simplify right side
    90,076.50x = 18,255,995,667.56
  5. Step 5: Solve for x
    x = 18,255,995,667.56/90,076.50
  6. Step 6: Final answer
    x = 202,672.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.