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Finding the Third Proportional to 34,789 and 75,135

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Solution

The third proportional to 34,789 and 75,135 is: 162,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,789 : 75,135 = 75,135 : x
  2. Step 2: Convert to fraction form
    34,789/75,135 = 75,135/x
  3. Step 3: Cross multiply
    34,789x = 75,135 × 75,135
  4. Step 4: Simplify right side
    34,789x = 5,645,268,225
  5. Step 5: Solve for x
    x = 5,645,268,225/34,789
  6. Step 6: Final answer
    x = 162,271.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.