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Finding the Third Proportional to 61,986 and 134,272.50

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Solution

The third proportional to 61,986 and 134,272.50 is: 290,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,986 : 134,272.50 = 134,272.50 : x
  2. Step 2: Convert to fraction form
    61,986/134,272.50 = 134,272.50/x
  3. Step 3: Cross multiply
    61,986x = 134,272.50 × 134,272.50
  4. Step 4: Simplify right side
    61,986x = 18,029,104,256.25
  5. Step 5: Solve for x
    x = 18,029,104,256.25/61,986
  6. Step 6: Final answer
    x = 290,857.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.