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Finding the Third Proportional to 108,579.38 and 156,638.81

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Solution

The third proportional to 108,579.38 and 156,638.81 is: 225,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,579.38 : 156,638.81 = 156,638.81 : x
  2. Step 2: Convert to fraction form
    108,579.38/156,638.81 = 156,638.81/x
  3. Step 3: Cross multiply
    108,579.38x = 156,638.81 × 156,638.81
  4. Step 4: Simplify right side
    108,579.38x = 24,535,717,581.41
  5. Step 5: Solve for x
    x = 24,535,717,581.41/108,579.38
  6. Step 6: Final answer
    x = 225,970.33

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.