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Finding the Third Proportional to 66,748 and 103,317

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Solution

The third proportional to 66,748 and 103,317 is: 159,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748 : 103,317 = 103,317 : x
  2. Step 2: Convert to fraction form
    66,748/103,317 = 103,317/x
  3. Step 3: Cross multiply
    66,748x = 103,317 × 103,317
  4. Step 4: Simplify right side
    66,748x = 10,674,402,489
  5. Step 5: Solve for x
    x = 10,674,402,489/66,748
  6. Step 6: Final answer
    x = 159,920.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.