Home / 126,122.21-189,183.32-119,815.55

Finding the Fourth Proportional to 126,122.21, 189,183.32 and 119,815.55

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Solution

The fourth proportional to 126,122.21, 189,183.32 and 119,815.55 is: 179,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.21 : 189,183.32 = 119,815.55 : x
  2. Step 2: Convert to fraction form
    126,122.21/189,183.32 = 119,815.55/x
  3. Step 3: Cross multiply
    126,122.21x = 189,183.32 × 119,815.55
  4. Step 4: Simplify right side
    126,122.21x = 22,667,102,937.55
  5. Step 5: Solve for x
    x = 22,667,102,937.55/126,122.21
  6. Step 6: Final answer
    x = 179,723.33

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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.