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Finding the Third Proportional to 65,724.75 and 142,521.25

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Solution

The third proportional to 65,724.75 and 142,521.25 is: 309,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,724.75 : 142,521.25 = 142,521.25 : x
  2. Step 2: Convert to fraction form
    65,724.75/142,521.25 = 142,521.25/x
  3. Step 3: Cross multiply
    65,724.75x = 142,521.25 × 142,521.25
  4. Step 4: Simplify right side
    65,724.75x = 20,312,306,701.56
  5. Step 5: Solve for x
    x = 20,312,306,701.56/65,724.75
  6. Step 6: Final answer
    x = 309,051.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.