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Finding the Third Proportional to 86,428 and 126,294

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Solution

The third proportional to 86,428 and 126,294 is: 184,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,428 : 126,294 = 126,294 : x
  2. Step 2: Convert to fraction form
    86,428/126,294 = 126,294/x
  3. Step 3: Cross multiply
    86,428x = 126,294 × 126,294
  4. Step 4: Simplify right side
    86,428x = 15,950,174,436
  5. Step 5: Solve for x
    x = 15,950,174,436/86,428
  6. Step 6: Final answer
    x = 184,548.69

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.