Home / 106,238.56-159,320.70-31,338.82

Finding the Fourth Proportional to 106,238.56, 159,320.70 and 31,338.82

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Solution

The fourth proportional to 106,238.56, 159,320.70 and 31,338.82 is: 46,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,238.56 : 159,320.70 = 31,338.82 : x
  2. Step 2: Convert to fraction form
    106,238.56/159,320.70 = 31,338.82/x
  3. Step 3: Cross multiply
    106,238.56x = 159,320.70 × 31,338.82
  4. Step 4: Simplify right side
    106,238.56x = 4,992,921,786.28
  5. Step 5: Solve for x
    x = 4,992,921,786.28/106,238.56
  6. Step 6: Final answer
    x = 46,997.27

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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.