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Finding the Third Proportional to 66,109.13 and 99,309.75

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Solution

The third proportional to 66,109.13 and 99,309.75 is: 149,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.13 : 99,309.75 = 99,309.75 : x
  2. Step 2: Convert to fraction form
    66,109.13/99,309.75 = 99,309.75/x
  3. Step 3: Cross multiply
    66,109.13x = 99,309.75 × 99,309.75
  4. Step 4: Simplify right side
    66,109.13x = 9,862,426,445.06
  5. Step 5: Solve for x
    x = 9,862,426,445.06/66,109.13
  6. Step 6: Final answer
    x = 149,184.04

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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.