Home / 159,789.12-239,493.06-74,284.44

Finding the Fourth Proportional to 159,789.12, 239,493.06 and 74,284.44

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Solution

The fourth proportional to 159,789.12, 239,493.06 and 74,284.44 is: 111,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,789.12 : 239,493.06 = 74,284.44 : x
  2. Step 2: Convert to fraction form
    159,789.12/239,493.06 = 74,284.44/x
  3. Step 3: Cross multiply
    159,789.12x = 239,493.06 × 74,284.44
  4. Step 4: Simplify right side
    159,789.12x = 17,790,607,845.99
  5. Step 5: Solve for x
    x = 17,790,607,845.99/159,789.12
  6. Step 6: Final answer
    x = 111,338.04

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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.