Home / 218,183.17-301,090.89-122,687.83

Finding the Fourth Proportional to 218,183.17, 301,090.89 and 122,687.83

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Solution

The fourth proportional to 218,183.17, 301,090.89 and 122,687.83 is: 169,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,183.17 : 301,090.89 = 122,687.83 : x
  2. Step 2: Convert to fraction form
    218,183.17/301,090.89 = 122,687.83/x
  3. Step 3: Cross multiply
    218,183.17x = 301,090.89 × 122,687.83
  4. Step 4: Simplify right side
    218,183.17x = 36,940,187,926.87
  5. Step 5: Solve for x
    x = 36,940,187,926.87/218,183.17
  6. Step 6: Final answer
    x = 169,308.15

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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.