Home / 119,286.22-178,934.79-84,381.70

Finding the Fourth Proportional to 119,286.22, 178,934.79 and 84,381.70

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Solution

The fourth proportional to 119,286.22, 178,934.79 and 84,381.70 is: 126,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,286.22 : 178,934.79 = 84,381.70 : x
  2. Step 2: Convert to fraction form
    119,286.22/178,934.79 = 84,381.70/x
  3. Step 3: Cross multiply
    119,286.22x = 178,934.79 × 84,381.70
  4. Step 4: Simplify right side
    119,286.22x = 15,098,821,769.34
  5. Step 5: Solve for x
    x = 15,098,821,769.34/119,286.22
  6. Step 6: Final answer
    x = 126,576.41

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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.