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Finding the Third Proportional to 127,130 and 172,658

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Solution

The third proportional to 127,130 and 172,658 is: 234,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130 : 172,658 = 172,658 : x
  2. Step 2: Convert to fraction form
    127,130/172,658 = 172,658/x
  3. Step 3: Cross multiply
    127,130x = 172,658 × 172,658
  4. Step 4: Simplify right side
    127,130x = 29,810,784,964
  5. Step 5: Solve for x
    x = 29,810,784,964/127,130
  6. Step 6: Final answer
    x = 234,490.56

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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.