Home / 189,049.09-283,691.85-76,729.29

Finding the Fourth Proportional to 189,049.09, 283,691.85 and 76,729.29

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Solution

The fourth proportional to 189,049.09, 283,691.85 and 76,729.29 is: 115,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,049.09 : 283,691.85 = 76,729.29 : x
  2. Step 2: Convert to fraction form
    189,049.09/283,691.85 = 76,729.29/x
  3. Step 3: Cross multiply
    189,049.09x = 283,691.85 × 76,729.29
  4. Step 4: Simplify right side
    189,049.09x = 21,767,474,905.08
  5. Step 5: Solve for x
    x = 21,767,474,905.08/189,049.09
  6. Step 6: Final answer
    x = 115,141.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.