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Finding the Third Proportional to 72,641 and 156,953

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Solution

The third proportional to 72,641 and 156,953 is: 339,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,641 : 156,953 = 156,953 : x
  2. Step 2: Convert to fraction form
    72,641/156,953 = 156,953/x
  3. Step 3: Cross multiply
    72,641x = 156,953 × 156,953
  4. Step 4: Simplify right side
    72,641x = 24,634,244,209
  5. Step 5: Solve for x
    x = 24,634,244,209/72,641
  6. Step 6: Final answer
    x = 339,123.14

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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.