Home / 172,196.10-258,330.60-52,243.20

Finding the Fourth Proportional to 172,196.10, 258,330.60 and 52,243.20

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Solution

The fourth proportional to 172,196.10, 258,330.60 and 52,243.20 is: 78,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,196.10 : 258,330.60 = 52,243.20 : x
  2. Step 2: Convert to fraction form
    172,196.10/258,330.60 = 52,243.20/x
  3. Step 3: Cross multiply
    172,196.10x = 258,330.60 × 52,243.20
  4. Step 4: Simplify right side
    172,196.10x = 13,496,017,201.92
  5. Step 5: Solve for x
    x = 13,496,017,201.92/172,196.10
  6. Step 6: Final answer
    x = 78,375.86

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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.