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Finding the Third Proportional to 74,610 and 112,635

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Solution

The third proportional to 74,610 and 112,635 is: 170,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,610 : 112,635 = 112,635 : x
  2. Step 2: Convert to fraction form
    74,610/112,635 = 112,635/x
  3. Step 3: Cross multiply
    74,610x = 112,635 × 112,635
  4. Step 4: Simplify right side
    74,610x = 12,686,643,225
  5. Step 5: Solve for x
    x = 12,686,643,225/74,610
  6. Step 6: Final answer
    x = 170,039.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.