Home / 106,429.82-159,645.38-31,550.66

Finding the Fourth Proportional to 106,429.82, 159,645.38 and 31,550.66

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Solution

The fourth proportional to 106,429.82, 159,645.38 and 31,550.66 is: 47,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,429.82 : 159,645.38 = 31,550.66 : x
  2. Step 2: Convert to fraction form
    106,429.82/159,645.38 = 31,550.66/x
  3. Step 3: Cross multiply
    106,429.82x = 159,645.38 × 31,550.66
  4. Step 4: Simplify right side
    106,429.82x = 5,036,917,823.12
  5. Step 5: Solve for x
    x = 5,036,917,823.12/106,429.82
  6. Step 6: Final answer
    x = 47,326.19

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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.