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Finding the Third Proportional to 74,573 and 112,946

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Solution

The third proportional to 74,573 and 112,946 is: 171,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573 : 112,946 = 112,946 : x
  2. Step 2: Convert to fraction form
    74,573/112,946 = 112,946/x
  3. Step 3: Cross multiply
    74,573x = 112,946 × 112,946
  4. Step 4: Simplify right side
    74,573x = 12,756,798,916
  5. Step 5: Solve for x
    x = 12,756,798,916/74,573
  6. Step 6: Final answer
    x = 171,064.58

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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.