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Finding the Fourth Proportional to 172,162.08, 258,250.14 and 53,834.40

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Solution

The fourth proportional to 172,162.08, 258,250.14 and 53,834.40 is: 80,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,162.08 : 258,250.14 = 53,834.40 : x
  2. Step 2: Convert to fraction form
    172,162.08/258,250.14 = 53,834.40/x
  3. Step 3: Cross multiply
    172,162.08x = 258,250.14 × 53,834.40
  4. Step 4: Simplify right side
    172,162.08x = 13,902,741,336.82
  5. Step 5: Solve for x
    x = 13,902,741,336.82/172,162.08
  6. Step 6: Final answer
    x = 80,753.80

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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.