Home / 213,790.05-320,555.48-107,049.87

Finding the Fourth Proportional to 213,790.05, 320,555.48 and 107,049.87

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Solution

The fourth proportional to 213,790.05, 320,555.48 and 107,049.87 is: 160,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,790.05 : 320,555.48 = 107,049.87 : x
  2. Step 2: Convert to fraction form
    213,790.05/320,555.48 = 107,049.87/x
  3. Step 3: Cross multiply
    213,790.05x = 320,555.48 × 107,049.87
  4. Step 4: Simplify right side
    213,790.05x = 34,315,421,926.54
  5. Step 5: Solve for x
    x = 34,315,421,926.54/213,790.05
  6. Step 6: Final answer
    x = 160,509.91

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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.