Home / 307,789.14-461,660.64-108,111.30

Finding the Fourth Proportional to 307,789.14, 461,660.64 and 108,111.30

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Solution

The fourth proportional to 307,789.14, 461,660.64 and 108,111.30 is: 162,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,789.14 : 461,660.64 = 108,111.30 : x
  2. Step 2: Convert to fraction form
    307,789.14/461,660.64 = 108,111.30/x
  3. Step 3: Cross multiply
    307,789.14x = 461,660.64 × 108,111.30
  4. Step 4: Simplify right side
    307,789.14x = 49,910,731,949.23
  5. Step 5: Solve for x
    x = 49,910,731,949.23/307,789.14
  6. Step 6: Final answer
    x = 162,158.85

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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.