Home / 159,240.33-219,754.62-87,619.73

Finding the Fourth Proportional to 159,240.33, 219,754.62 and 87,619.73

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Solution

The fourth proportional to 159,240.33, 219,754.62 and 87,619.73 is: 120,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,240.33 : 219,754.62 = 87,619.73 : x
  2. Step 2: Convert to fraction form
    159,240.33/219,754.62 = 87,619.73/x
  3. Step 3: Cross multiply
    159,240.33x = 219,754.62 × 87,619.73
  4. Step 4: Simplify right side
    159,240.33x = 19,254,839,371.88
  5. Step 5: Solve for x
    x = 19,254,839,371.88/159,240.33
  6. Step 6: Final answer
    x = 120,916.85

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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.