Home / 126,631.20-189,950-43,524.64

Finding the Fourth Proportional to 126,631.20, 189,950 and 43,524.64

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Solution

The fourth proportional to 126,631.20, 189,950 and 43,524.64 is: 65,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,631.20 : 189,950 = 43,524.64 : x
  2. Step 2: Convert to fraction form
    126,631.20/189,950 = 43,524.64/x
  3. Step 3: Cross multiply
    126,631.20x = 189,950 × 43,524.64
  4. Step 4: Simplify right side
    126,631.20x = 8,267,505,368
  5. Step 5: Solve for x
    x = 8,267,505,368/126,631.20
  6. Step 6: Final answer
    x = 65,288.06

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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.