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Finding the Third Proportional to 75,498.75 and 121,375.13

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Solution

The third proportional to 75,498.75 and 121,375.13 is: 195,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,498.75 : 121,375.13 = 121,375.13 : x
  2. Step 2: Convert to fraction form
    75,498.75/121,375.13 = 121,375.13/x
  3. Step 3: Cross multiply
    75,498.75x = 121,375.13 × 121,375.13
  4. Step 4: Simplify right side
    75,498.75x = 14,731,920,968.77
  5. Step 5: Solve for x
    x = 14,731,920,968.77/75,498.75
  6. Step 6: Final answer
    x = 195,128.01

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.