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Finding the Third Proportional to 86,588 and 130,136

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Solution

The third proportional to 86,588 and 130,136 is: 195,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,588 : 130,136 = 130,136 : x
  2. Step 2: Convert to fraction form
    86,588/130,136 = 130,136/x
  3. Step 3: Cross multiply
    86,588x = 130,136 × 130,136
  4. Step 4: Simplify right side
    86,588x = 16,935,378,496
  5. Step 5: Solve for x
    x = 16,935,378,496/86,588
  6. Step 6: Final answer
    x = 195,585.75

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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.