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Finding the Third Proportional to 91,739.75 and 140,345.25

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Solution

The third proportional to 91,739.75 and 140,345.25 is: 214,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,739.75 : 140,345.25 = 140,345.25 : x
  2. Step 2: Convert to fraction form
    91,739.75/140,345.25 = 140,345.25/x
  3. Step 3: Cross multiply
    91,739.75x = 140,345.25 × 140,345.25
  4. Step 4: Simplify right side
    91,739.75x = 19,696,789,197.56
  5. Step 5: Solve for x
    x = 19,696,789,197.56/91,739.75
  6. Step 6: Final answer
    x = 214,702.89

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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.