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Finding the Fourth Proportional to 172,741.92, 259,147.71 and 72,902.22

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Solution

The fourth proportional to 172,741.92, 259,147.71 and 72,902.22 is: 109,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,741.92 : 259,147.71 = 72,902.22 : x
  2. Step 2: Convert to fraction form
    172,741.92/259,147.71 = 72,902.22/x
  3. Step 3: Cross multiply
    172,741.92x = 259,147.71 × 72,902.22
  4. Step 4: Simplify right side
    172,741.92x = 18,892,443,366.92
  5. Step 5: Solve for x
    x = 18,892,443,366.92/172,741.92
  6. Step 6: Final answer
    x = 109,368.03

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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.