Home / 259,703.20-389,505.59-91,183.92

Finding the Fourth Proportional to 259,703.20, 389,505.59 and 91,183.92

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Solution

The fourth proportional to 259,703.20, 389,505.59 and 91,183.92 is: 136,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,703.20 : 389,505.59 = 91,183.92 : x
  2. Step 2: Convert to fraction form
    259,703.20/389,505.59 = 91,183.92/x
  3. Step 3: Cross multiply
    259,703.20x = 389,505.59 × 91,183.92
  4. Step 4: Simplify right side
    259,703.20x = 35,516,646,558.11
  5. Step 5: Solve for x
    x = 35,516,646,558.11/259,703.20
  6. Step 6: Final answer
    x = 136,758.60

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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.