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Finding the Third Proportional to 91,833.75 and 139,137

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Solution

The third proportional to 91,833.75 and 139,137 is: 210,805.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,833.75 : 139,137 = 139,137 : x
  2. Step 2: Convert to fraction form
    91,833.75/139,137 = 139,137/x
  3. Step 3: Cross multiply
    91,833.75x = 139,137 × 139,137
  4. Step 4: Simplify right side
    91,833.75x = 19,359,104,769
  5. Step 5: Solve for x
    x = 19,359,104,769/91,833.75
  6. Step 6: Final answer
    x = 210,805.99

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.