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Finding the Third Proportional to 120,706 and 176,739

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Solution

The third proportional to 120,706 and 176,739 is: 258,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,706 : 176,739 = 176,739 : x
  2. Step 2: Convert to fraction form
    120,706/176,739 = 176,739/x
  3. Step 3: Cross multiply
    120,706x = 176,739 × 176,739
  4. Step 4: Simplify right side
    120,706x = 31,236,674,121
  5. Step 5: Solve for x
    x = 31,236,674,121/120,706
  6. Step 6: Final answer
    x = 258,783.11

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.