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Finding the Fourth Proportional to 172,653.52, 258,893.52 and 100,629.61

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Solution

The fourth proportional to 172,653.52, 258,893.52 and 100,629.61 is: 150,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,653.52 : 258,893.52 = 100,629.61 : x
  2. Step 2: Convert to fraction form
    172,653.52/258,893.52 = 100,629.61/x
  3. Step 3: Cross multiply
    172,653.52x = 258,893.52 × 100,629.61
  4. Step 4: Simplify right side
    172,653.52x = 26,052,353,949.13
  5. Step 5: Solve for x
    x = 26,052,353,949.13/172,653.52
  6. Step 6: Final answer
    x = 150,893.85

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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.