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Finding the Third Proportional to 90,963 and 121,297.50

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Solution

The third proportional to 90,963 and 121,297.50 is: 161,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,963 : 121,297.50 = 121,297.50 : x
  2. Step 2: Convert to fraction form
    90,963/121,297.50 = 121,297.50/x
  3. Step 3: Cross multiply
    90,963x = 121,297.50 × 121,297.50
  4. Step 4: Simplify right side
    90,963x = 14,713,083,506.25
  5. Step 5: Solve for x
    x = 14,713,083,506.25/90,963
  6. Step 6: Final answer
    x = 161,748.00

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.