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Finding the Third Proportional to 86,553 and 129,829.50

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Solution

The third proportional to 86,553 and 129,829.50 is: 194,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,553 : 129,829.50 = 129,829.50 : x
  2. Step 2: Convert to fraction form
    86,553/129,829.50 = 129,829.50/x
  3. Step 3: Cross multiply
    86,553x = 129,829.50 × 129,829.50
  4. Step 4: Simplify right side
    86,553x = 16,855,699,070.25
  5. Step 5: Solve for x
    x = 16,855,699,070.25/86,553
  6. Step 6: Final answer
    x = 194,744.25

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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.