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Finding the Third Proportional to 79,920 and 162,590.63

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Solution

The third proportional to 79,920 and 162,590.63 is: 330,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,920 : 162,590.63 = 162,590.63 : x
  2. Step 2: Convert to fraction form
    79,920/162,590.63 = 162,590.63/x
  3. Step 3: Cross multiply
    79,920x = 162,590.63 × 162,590.63
  4. Step 4: Simplify right side
    79,920x = 26,435,711,337.89
  5. Step 5: Solve for x
    x = 26,435,711,337.89/79,920
  6. Step 6: Final answer
    x = 330,777.17

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.