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Finding the Third Proportional to 127,127.50 and 172,655.50

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Solution

The third proportional to 127,127.50 and 172,655.50 is: 234,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.50 : 172,655.50 = 172,655.50 : x
  2. Step 2: Convert to fraction form
    127,127.50/172,655.50 = 172,655.50/x
  3. Step 3: Cross multiply
    127,127.50x = 172,655.50 × 172,655.50
  4. Step 4: Simplify right side
    127,127.50x = 29,809,921,680.25
  5. Step 5: Solve for x
    x = 29,809,921,680.25/127,127.50
  6. Step 6: Final answer
    x = 234,488.38

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.