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Finding the Third Proportional to 78,127.88 and 110,622.75

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Solution

The third proportional to 78,127.88 and 110,622.75 is: 156,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,127.88 : 110,622.75 = 110,622.75 : x
  2. Step 2: Convert to fraction form
    78,127.88/110,622.75 = 110,622.75/x
  3. Step 3: Cross multiply
    78,127.88x = 110,622.75 × 110,622.75
  4. Step 4: Simplify right side
    78,127.88x = 12,237,392,817.56
  5. Step 5: Solve for x
    x = 12,237,392,817.56/78,127.88
  6. Step 6: Final answer
    x = 156,632.86

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.