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Finding the Third Proportional to 109,315.13 and 145,310.63

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Solution

The third proportional to 109,315.13 and 145,310.63 is: 193,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.13 : 145,310.63 = 145,310.63 : x
  2. Step 2: Convert to fraction form
    109,315.13/145,310.63 = 145,310.63/x
  3. Step 3: Cross multiply
    109,315.13x = 145,310.63 × 145,310.63
  4. Step 4: Simplify right side
    109,315.13x = 21,115,177,737.89
  5. Step 5: Solve for x
    x = 21,115,177,737.89/109,315.13
  6. Step 6: Final answer
    x = 193,158.79

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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.