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Finding the Third Proportional to 81,055.50 and 121,259.25

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Solution

The third proportional to 81,055.50 and 121,259.25 is: 181,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,055.50 : 121,259.25 = 121,259.25 : x
  2. Step 2: Convert to fraction form
    81,055.50/121,259.25 = 121,259.25/x
  3. Step 3: Cross multiply
    81,055.50x = 121,259.25 × 121,259.25
  4. Step 4: Simplify right side
    81,055.50x = 14,703,805,710.56
  5. Step 5: Solve for x
    x = 14,703,805,710.56/81,055.50
  6. Step 6: Final answer
    x = 181,404.17

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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.