Home / 189,249.45-261,155.46-108,620.23

Finding the Fourth Proportional to 189,249.45, 261,155.46 and 108,620.23

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Solution

The fourth proportional to 189,249.45, 261,155.46 and 108,620.23 is: 149,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,249.45 : 261,155.46 = 108,620.23 : x
  2. Step 2: Convert to fraction form
    189,249.45/261,155.46 = 108,620.23/x
  3. Step 3: Cross multiply
    189,249.45x = 261,155.46 × 108,620.23
  4. Step 4: Simplify right side
    189,249.45x = 28,366,766,130.96
  5. Step 5: Solve for x
    x = 28,366,766,130.96/189,249.45
  6. Step 6: Final answer
    x = 149,890.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.