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Finding the Third Proportional to 89,219.25 and 128,238.75

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Solution

The third proportional to 89,219.25 and 128,238.75 is: 184,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.25 : 128,238.75 = 128,238.75 : x
  2. Step 2: Convert to fraction form
    89,219.25/128,238.75 = 128,238.75/x
  3. Step 3: Cross multiply
    89,219.25x = 128,238.75 × 128,238.75
  4. Step 4: Simplify right side
    89,219.25x = 16,445,177,001.56
  5. Step 5: Solve for x
    x = 16,445,177,001.56/89,219.25
  6. Step 6: Final answer
    x = 184,323.19

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.