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Finding the Third Proportional to 78,399.50 and 119,442.75

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Solution

The third proportional to 78,399.50 and 119,442.75 is: 181,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,399.50 : 119,442.75 = 119,442.75 : x
  2. Step 2: Convert to fraction form
    78,399.50/119,442.75 = 119,442.75/x
  3. Step 3: Cross multiply
    78,399.50x = 119,442.75 × 119,442.75
  4. Step 4: Simplify right side
    78,399.50x = 14,266,570,527.56
  5. Step 5: Solve for x
    x = 14,266,570,527.56/78,399.50
  6. Step 6: Final answer
    x = 181,972.72

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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.