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Finding the Fourth Proportional to 172,893, 259,441.59 and 73,046.76

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Solution

The fourth proportional to 172,893, 259,441.59 and 73,046.76 is: 109,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,893 : 259,441.59 = 73,046.76 : x
  2. Step 2: Convert to fraction form
    172,893/259,441.59 = 73,046.76/x
  3. Step 3: Cross multiply
    172,893x = 259,441.59 × 73,046.76
  4. Step 4: Simplify right side
    172,893x = 18,951,367,558.75
  5. Step 5: Solve for x
    x = 18,951,367,558.75/172,893
  6. Step 6: Final answer
    x = 109,613.27

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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.