Home / 213,825.30-320,809.22-71,684.64

Finding the Fourth Proportional to 213,825.30, 320,809.22 and 71,684.64

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Solution

The fourth proportional to 213,825.30, 320,809.22 and 71,684.64 is: 107,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,825.30 : 320,809.22 = 71,684.64 : x
  2. Step 2: Convert to fraction form
    213,825.30/320,809.22 = 71,684.64/x
  3. Step 3: Cross multiply
    213,825.30x = 320,809.22 × 71,684.64
  4. Step 4: Simplify right side
    213,825.30x = 22,997,093,085.96
  5. Step 5: Solve for x
    x = 22,997,093,085.96/213,825.30
  6. Step 6: Final answer
    x = 107,550.85

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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.