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Finding the Third Proportional to 78,403 and 119,446.50

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Solution

The third proportional to 78,403 and 119,446.50 is: 181,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,403 : 119,446.50 = 119,446.50 : x
  2. Step 2: Convert to fraction form
    78,403/119,446.50 = 119,446.50/x
  3. Step 3: Cross multiply
    78,403x = 119,446.50 × 119,446.50
  4. Step 4: Simplify right side
    78,403x = 14,267,466,362.25
  5. Step 5: Solve for x
    x = 14,267,466,362.25/78,403
  6. Step 6: Final answer
    x = 181,976.03

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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.