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Finding the Fourth Proportional to 172,828.69, 259,243.20 and 48,169.69

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Solution

The fourth proportional to 172,828.69, 259,243.20 and 48,169.69 is: 72,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,828.69 : 259,243.20 = 48,169.69 : x
  2. Step 2: Convert to fraction form
    172,828.69/259,243.20 = 48,169.69/x
  3. Step 3: Cross multiply
    172,828.69x = 259,243.20 × 48,169.69
  4. Step 4: Simplify right side
    172,828.69x = 12,487,663,930.50
  5. Step 5: Solve for x
    x = 12,487,663,930.50/172,828.69
  6. Step 6: Final answer
    x = 72,254.58

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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.