Home / 150,154.71-207,213.43-82,171.68

Finding the Fourth Proportional to 150,154.71, 207,213.43 and 82,171.68

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Solution

The fourth proportional to 150,154.71, 207,213.43 and 82,171.68 is: 113,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,154.71 : 207,213.43 = 82,171.68 : x
  2. Step 2: Convert to fraction form
    150,154.71/207,213.43 = 82,171.68/x
  3. Step 3: Cross multiply
    150,154.71x = 207,213.43 × 82,171.68
  4. Step 4: Simplify right side
    150,154.71x = 17,027,074,625.60
  5. Step 5: Solve for x
    x = 17,027,074,625.60/150,154.71
  6. Step 6: Final answer
    x = 113,396.88

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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.