Home / 213,899.22-320,832.11-56,123.57

Finding the Fourth Proportional to 213,899.22, 320,832.11 and 56,123.57

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Solution

The fourth proportional to 213,899.22, 320,832.11 and 56,123.57 is: 84,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,899.22 : 320,832.11 = 56,123.57 : x
  2. Step 2: Convert to fraction form
    213,899.22/320,832.11 = 56,123.57/x
  3. Step 3: Cross multiply
    213,899.22x = 320,832.11 × 56,123.57
  4. Step 4: Simplify right side
    213,899.22x = 18,006,241,499.05
  5. Step 5: Solve for x
    x = 18,006,241,499.05/213,899.22
  6. Step 6: Final answer
    x = 84,180.96

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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.