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Finding the Third Proportional to 79,071.75 and 115,812.38

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Solution

The third proportional to 79,071.75 and 115,812.38 is: 169,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,071.75 : 115,812.38 = 115,812.38 : x
  2. Step 2: Convert to fraction form
    79,071.75/115,812.38 = 115,812.38/x
  3. Step 3: Cross multiply
    79,071.75x = 115,812.38 × 115,812.38
  4. Step 4: Simplify right side
    79,071.75x = 13,412,506,203.14
  5. Step 5: Solve for x
    x = 13,412,506,203.14/79,071.75
  6. Step 6: Final answer
    x = 169,624.50

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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.