Home / 239,139.37-330,027.31-131,709.38

Finding the Fourth Proportional to 239,139.37, 330,027.31 and 131,709.38

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Solution

The fourth proportional to 239,139.37, 330,027.31 and 131,709.38 is: 181,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,139.37 : 330,027.31 = 131,709.38 : x
  2. Step 2: Convert to fraction form
    239,139.37/330,027.31 = 131,709.38/x
  3. Step 3: Cross multiply
    239,139.37x = 330,027.31 × 131,709.38
  4. Step 4: Simplify right side
    239,139.37x = 43,467,690,403.76
  5. Step 5: Solve for x
    x = 43,467,690,403.76/239,139.37
  6. Step 6: Final answer
    x = 181,767.19

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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.