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Finding the Third Proportional to 79,344.56 and 121,530.38

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Solution

The third proportional to 79,344.56 and 121,530.38 is: 186,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,344.56 : 121,530.38 = 121,530.38 : x
  2. Step 2: Convert to fraction form
    79,344.56/121,530.38 = 121,530.38/x
  3. Step 3: Cross multiply
    79,344.56x = 121,530.38 × 121,530.38
  4. Step 4: Simplify right side
    79,344.56x = 14,769,632,047.64
  5. Step 5: Solve for x
    x = 14,769,632,047.64/79,344.56
  6. Step 6: Final answer
    x = 186,145.48

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.