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Finding the Third Proportional to 90,520.50 and 137,238.75

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Solution

The third proportional to 90,520.50 and 137,238.75 is: 208,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,520.50 : 137,238.75 = 137,238.75 : x
  2. Step 2: Convert to fraction form
    90,520.50/137,238.75 = 137,238.75/x
  3. Step 3: Cross multiply
    90,520.50x = 137,238.75 × 137,238.75
  4. Step 4: Simplify right side
    90,520.50x = 18,834,474,501.56
  5. Step 5: Solve for x
    x = 18,834,474,501.56/90,520.50
  6. Step 6: Final answer
    x = 208,068.61

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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.