Home / 189,286.12-283,993.98-84,178.36

Finding the Fourth Proportional to 189,286.12, 283,993.98 and 84,178.36

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Solution

The fourth proportional to 189,286.12, 283,993.98 and 84,178.36 is: 126,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,286.12 : 283,993.98 = 84,178.36 : x
  2. Step 2: Convert to fraction form
    189,286.12/283,993.98 = 84,178.36/x
  3. Step 3: Cross multiply
    189,286.12x = 283,993.98 × 84,178.36
  4. Step 4: Simplify right side
    189,286.12x = 23,906,147,486.27
  5. Step 5: Solve for x
    x = 23,906,147,486.27/189,286.12
  6. Step 6: Final answer
    x = 126,296.36

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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.