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Finding the Third Proportional to 90,069 and 135,151.50

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Solution

The third proportional to 90,069 and 135,151.50 is: 202,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,069 : 135,151.50 = 135,151.50 : x
  2. Step 2: Convert to fraction form
    90,069/135,151.50 = 135,151.50/x
  3. Step 3: Cross multiply
    90,069x = 135,151.50 × 135,151.50
  4. Step 4: Simplify right side
    90,069x = 18,265,927,952.25
  5. Step 5: Solve for x
    x = 18,265,927,952.25/90,069
  6. Step 6: Final answer
    x = 202,799.28

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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.