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Finding the Third Proportional to 77,127 and 122,224.50

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Solution

The third proportional to 77,127 and 122,224.50 is: 193,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,127 : 122,224.50 = 122,224.50 : x
  2. Step 2: Convert to fraction form
    77,127/122,224.50 = 122,224.50/x
  3. Step 3: Cross multiply
    77,127x = 122,224.50 × 122,224.50
  4. Step 4: Simplify right side
    77,127x = 14,938,828,400.25
  5. Step 5: Solve for x
    x = 14,938,828,400.25/77,127
  6. Step 6: Final answer
    x = 193,691.29

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.