Home / 107,455.76-161,183.32-28,569.92

Finding the Fourth Proportional to 107,455.76, 161,183.32 and 28,569.92

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Solution

The fourth proportional to 107,455.76, 161,183.32 and 28,569.92 is: 42,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,455.76 : 161,183.32 = 28,569.92 : x
  2. Step 2: Convert to fraction form
    107,455.76/161,183.32 = 28,569.92/x
  3. Step 3: Cross multiply
    107,455.76x = 161,183.32 × 28,569.92
  4. Step 4: Simplify right side
    107,455.76x = 4,604,994,557.73
  5. Step 5: Solve for x
    x = 4,604,994,557.73/107,455.76
  6. Step 6: Final answer
    x = 42,854.79

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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.