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Finding the Third Proportional to 86,013 and 130,316

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Solution

The third proportional to 86,013 and 130,316 is: 197,438.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,013 : 130,316 = 130,316 : x
  2. Step 2: Convert to fraction form
    86,013/130,316 = 130,316/x
  3. Step 3: Cross multiply
    86,013x = 130,316 × 130,316
  4. Step 4: Simplify right side
    86,013x = 16,982,259,856
  5. Step 5: Solve for x
    x = 16,982,259,856/86,013
  6. Step 6: Final answer
    x = 197,438.29

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.