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Finding the Third Proportional to 86,572.13 and 130,108.78

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Solution

The third proportional to 86,572.13 and 130,108.78 is: 195,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,572.13 : 130,108.78 = 130,108.78 : x
  2. Step 2: Convert to fraction form
    86,572.13/130,108.78 = 130,108.78/x
  3. Step 3: Cross multiply
    86,572.13x = 130,108.78 × 130,108.78
  4. Step 4: Simplify right side
    86,572.13x = 16,928,294,958.36
  5. Step 5: Solve for x
    x = 16,928,294,958.36/86,572.13
  6. Step 6: Final answer
    x = 195,539.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.