Home / 213,431.94-320,327.46-106,783.92

Finding the Fourth Proportional to 213,431.94, 320,327.46 and 106,783.92

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Solution

The fourth proportional to 213,431.94, 320,327.46 and 106,783.92 is: 160,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,431.94 : 320,327.46 = 106,783.92 : x
  2. Step 2: Convert to fraction form
    213,431.94/320,327.46 = 106,783.92/x
  3. Step 3: Cross multiply
    213,431.94x = 320,327.46 × 106,783.92
  4. Step 4: Simplify right side
    213,431.94x = 34,205,821,862.44
  5. Step 5: Solve for x
    x = 34,205,821,862.44/213,431.94
  6. Step 6: Final answer
    x = 160,265.71

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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.