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Finding the Third Proportional to 72,181.50 and 148,939.75

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Solution

The third proportional to 72,181.50 and 148,939.75 is: 307,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,181.50 : 148,939.75 = 148,939.75 : x
  2. Step 2: Convert to fraction form
    72,181.50/148,939.75 = 148,939.75/x
  3. Step 3: Cross multiply
    72,181.50x = 148,939.75 × 148,939.75
  4. Step 4: Simplify right side
    72,181.50x = 22,183,049,130.06
  5. Step 5: Solve for x
    x = 22,183,049,130.06/72,181.50
  6. Step 6: Final answer
    x = 307,323.19

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.