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Finding the Third Proportional to 90,811.13 and 124,659

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Solution

The third proportional to 90,811.13 and 124,659 is: 171,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.13 : 124,659 = 124,659 : x
  2. Step 2: Convert to fraction form
    90,811.13/124,659 = 124,659/x
  3. Step 3: Cross multiply
    90,811.13x = 124,659 × 124,659
  4. Step 4: Simplify right side
    90,811.13x = 15,539,866,281
  5. Step 5: Solve for x
    x = 15,539,866,281/90,811.13
  6. Step 6: Final answer
    x = 171,122.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.