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Finding the Third Proportional to 86,568 and 130,790

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Solution

The third proportional to 86,568 and 130,790 is: 197,602.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568 : 130,790 = 130,790 : x
  2. Step 2: Convert to fraction form
    86,568/130,790 = 130,790/x
  3. Step 3: Cross multiply
    86,568x = 130,790 × 130,790
  4. Step 4: Simplify right side
    86,568x = 17,106,024,100
  5. Step 5: Solve for x
    x = 17,106,024,100/86,568
  6. Step 6: Final answer
    x = 197,602.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.