Home / 205,187.22-283,159.53-120,305.70

Finding the Fourth Proportional to 205,187.22, 283,159.53 and 120,305.70

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Solution

The fourth proportional to 205,187.22, 283,159.53 and 120,305.70 is: 166,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,187.22 : 283,159.53 = 120,305.70 : x
  2. Step 2: Convert to fraction form
    205,187.22/283,159.53 = 120,305.70/x
  3. Step 3: Cross multiply
    205,187.22x = 283,159.53 × 120,305.70
  4. Step 4: Simplify right side
    205,187.22x = 34,065,705,468.32
  5. Step 5: Solve for x
    x = 34,065,705,468.32/205,187.22
  6. Step 6: Final answer
    x = 166,022.55

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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.