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Finding the Third Proportional to 45,130 and 99,009

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Solution

The third proportional to 45,130 and 99,009 is: 217,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130 : 99,009 = 99,009 : x
  2. Step 2: Convert to fraction form
    45,130/99,009 = 99,009/x
  3. Step 3: Cross multiply
    45,130x = 99,009 × 99,009
  4. Step 4: Simplify right side
    45,130x = 9,802,782,081
  5. Step 5: Solve for x
    x = 9,802,782,081/45,130
  6. Step 6: Final answer
    x = 217,212.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.