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Finding the Third Proportional to 61,659 and 133,030

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Solution

The third proportional to 61,659 and 133,030 is: 287,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659 : 133,030 = 133,030 : x
  2. Step 2: Convert to fraction form
    61,659/133,030 = 133,030/x
  3. Step 3: Cross multiply
    61,659x = 133,030 × 133,030
  4. Step 4: Simplify right side
    61,659x = 17,696,980,900
  5. Step 5: Solve for x
    x = 17,696,980,900/61,659
  6. Step 6: Final answer
    x = 287,013.75

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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.