Home / 119,836.81-165,375.68-66,123.82

Finding the Fourth Proportional to 119,836.81, 165,375.68 and 66,123.82

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Solution

The fourth proportional to 119,836.81, 165,375.68 and 66,123.82 is: 91,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,836.81 : 165,375.68 = 66,123.82 : x
  2. Step 2: Convert to fraction form
    119,836.81/165,375.68 = 66,123.82/x
  3. Step 3: Cross multiply
    119,836.81x = 165,375.68 × 66,123.82
  4. Step 4: Simplify right side
    119,836.81x = 10,935,271,696.70
  5. Step 5: Solve for x
    x = 10,935,271,696.70/119,836.81
  6. Step 6: Final answer
    x = 91,251.36

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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.