Home / 156,486.33-234,722.97-72,218.49

Finding the Fourth Proportional to 156,486.33, 234,722.97 and 72,218.49

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Solution

The fourth proportional to 156,486.33, 234,722.97 and 72,218.49 is: 108,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,486.33 : 234,722.97 = 72,218.49 : x
  2. Step 2: Convert to fraction form
    156,486.33/234,722.97 = 72,218.49/x
  3. Step 3: Cross multiply
    156,486.33x = 234,722.97 × 72,218.49
  4. Step 4: Simplify right side
    156,486.33x = 16,951,338,461.72
  5. Step 5: Solve for x
    x = 16,951,338,461.72/156,486.33
  6. Step 6: Final answer
    x = 108,324.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.