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Finding the Third Proportional to 91,737.75 and 137,178.75

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Solution

The third proportional to 91,737.75 and 137,178.75 is: 205,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,737.75 : 137,178.75 = 137,178.75 : x
  2. Step 2: Convert to fraction form
    91,737.75/137,178.75 = 137,178.75/x
  3. Step 3: Cross multiply
    91,737.75x = 137,178.75 × 137,178.75
  4. Step 4: Simplify right side
    91,737.75x = 18,818,009,451.56
  5. Step 5: Solve for x
    x = 18,818,009,451.56/91,737.75
  6. Step 6: Final answer
    x = 205,128.31

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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.