Home / 205,171.05-283,183.28-120,315.45

Finding the Fourth Proportional to 205,171.05, 283,183.28 and 120,315.45

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Solution

The fourth proportional to 205,171.05, 283,183.28 and 120,315.45 is: 166,063.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,171.05 : 283,183.28 = 120,315.45 : x
  2. Step 2: Convert to fraction form
    205,171.05/283,183.28 = 120,315.45/x
  3. Step 3: Cross multiply
    205,171.05x = 283,183.28 × 120,315.45
  4. Step 4: Simplify right side
    205,171.05x = 34,071,323,765.68
  5. Step 5: Solve for x
    x = 34,071,323,765.68/205,171.05
  6. Step 6: Final answer
    x = 166,063.02

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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.