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Finding the Third Proportional to 78,120 and 165,552

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Solution

The third proportional to 78,120 and 165,552 is: 350,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,120 : 165,552 = 165,552 : x
  2. Step 2: Convert to fraction form
    78,120/165,552 = 165,552/x
  3. Step 3: Cross multiply
    78,120x = 165,552 × 165,552
  4. Step 4: Simplify right side
    78,120x = 27,407,464,704
  5. Step 5: Solve for x
    x = 27,407,464,704/78,120
  6. Step 6: Final answer
    x = 350,838.00

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.