Home / 119,749.70-165,251.39-66,033.78

Finding the Fourth Proportional to 119,749.70, 165,251.39 and 66,033.78

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Solution

The fourth proportional to 119,749.70, 165,251.39 and 66,033.78 is: 91,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,749.70 : 165,251.39 = 66,033.78 : x
  2. Step 2: Convert to fraction form
    119,749.70/165,251.39 = 66,033.78/x
  3. Step 3: Cross multiply
    119,749.70x = 165,251.39 × 66,033.78
  4. Step 4: Simplify right side
    119,749.70x = 10,912,173,601.79
  5. Step 5: Solve for x
    x = 10,912,173,601.79/119,749.70
  6. Step 6: Final answer
    x = 91,124.86

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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.