Home / 172,321.40-258,490.20-53,996.60

Finding the Fourth Proportional to 172,321.40, 258,490.20 and 53,996.60

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Solution

The fourth proportional to 172,321.40, 258,490.20 and 53,996.60 is: 80,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,321.40 : 258,490.20 = 53,996.60 : x
  2. Step 2: Convert to fraction form
    172,321.40/258,490.20 = 53,996.60/x
  3. Step 3: Cross multiply
    172,321.40x = 258,490.20 × 53,996.60
  4. Step 4: Simplify right side
    172,321.40x = 13,957,591,933.32
  5. Step 5: Solve for x
    x = 13,957,591,933.32/172,321.40
  6. Step 6: Final answer
    x = 80,997.44

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1.5x scale

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.