Home / 119,930.68-165,503.28-66,214.56

Finding the Fourth Proportional to 119,930.68, 165,503.28 and 66,214.56

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Solution

The fourth proportional to 119,930.68, 165,503.28 and 66,214.56 is: 91,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,930.68 : 165,503.28 = 66,214.56 : x
  2. Step 2: Convert to fraction form
    119,930.68/165,503.28 = 66,214.56/x
  3. Step 3: Cross multiply
    119,930.68x = 165,503.28 × 66,214.56
  4. Step 4: Simplify right side
    119,930.68x = 10,958,726,863.76
  5. Step 5: Solve for x
    x = 10,958,726,863.76/119,930.68
  6. Step 6: Final answer
    x = 91,375.51

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1.5x scale

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.