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Finding the Third Proportional to 77,873 and 117,332

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Solution

The third proportional to 77,873 and 117,332 is: 176,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,873 : 117,332 = 117,332 : x
  2. Step 2: Convert to fraction form
    77,873/117,332 = 117,332/x
  3. Step 3: Cross multiply
    77,873x = 117,332 × 117,332
  4. Step 4: Simplify right side
    77,873x = 13,766,798,224
  5. Step 5: Solve for x
    x = 13,766,798,224/77,873
  6. Step 6: Final answer
    x = 176,785.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.