Home / 213,997.21-320,995.04-64,236.85

Finding the Fourth Proportional to 213,997.21, 320,995.04 and 64,236.85

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Solution

The fourth proportional to 213,997.21, 320,995.04 and 64,236.85 is: 96,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,997.21 : 320,995.04 = 64,236.85 : x
  2. Step 2: Convert to fraction form
    213,997.21/320,995.04 = 64,236.85/x
  3. Step 3: Cross multiply
    213,997.21x = 320,995.04 × 64,236.85
  4. Step 4: Simplify right side
    213,997.21x = 20,619,708,309.06
  5. Step 5: Solve for x
    x = 20,619,708,309.06/213,997.21
  6. Step 6: Final answer
    x = 96,355.04

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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.