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Finding the Third Proportional to 91,059 and 137,859.75

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Solution

The third proportional to 91,059 and 137,859.75 is: 208,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,059 : 137,859.75 = 137,859.75 : x
  2. Step 2: Convert to fraction form
    91,059/137,859.75 = 137,859.75/x
  3. Step 3: Cross multiply
    91,059x = 137,859.75 × 137,859.75
  4. Step 4: Simplify right side
    91,059x = 19,005,310,670.06
  5. Step 5: Solve for x
    x = 19,005,310,670.06/91,059
  6. Step 6: Final answer
    x = 208,714.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.