Home / 189,950.43-262,022.13-120,912.24

Finding the Fourth Proportional to 189,950.43, 262,022.13 and 120,912.24

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Solution

The fourth proportional to 189,950.43, 262,022.13 and 120,912.24 is: 166,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,950.43 : 262,022.13 = 120,912.24 : x
  2. Step 2: Convert to fraction form
    189,950.43/262,022.13 = 120,912.24/x
  3. Step 3: Cross multiply
    189,950.43x = 262,022.13 × 120,912.24
  4. Step 4: Simplify right side
    189,950.43x = 31,681,682,667.87
  5. Step 5: Solve for x
    x = 31,681,682,667.87/189,950.43
  6. Step 6: Final answer
    x = 166,789.21

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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.