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Finding the Third Proportional to 61,035.75 and 138,021.75

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Solution

The third proportional to 61,035.75 and 138,021.75 is: 312,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,035.75 : 138,021.75 = 138,021.75 : x
  2. Step 2: Convert to fraction form
    61,035.75/138,021.75 = 138,021.75/x
  3. Step 3: Cross multiply
    61,035.75x = 138,021.75 × 138,021.75
  4. Step 4: Simplify right side
    61,035.75x = 19,050,003,473.06
  5. Step 5: Solve for x
    x = 19,050,003,473.06/61,035.75
  6. Step 6: Final answer
    x = 312,112.22

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.