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Finding the Third Proportional to 61,572 and 132,986

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Solution

The third proportional to 61,572 and 132,986 is: 287,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572 : 132,986 = 132,986 : x
  2. Step 2: Convert to fraction form
    61,572/132,986 = 132,986/x
  3. Step 3: Cross multiply
    61,572x = 132,986 × 132,986
  4. Step 4: Simplify right side
    61,572x = 17,685,276,196
  5. Step 5: Solve for x
    x = 17,685,276,196/61,572
  6. Step 6: Final answer
    x = 287,229.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.