Home / 107,699.88-161,582.79-55,146.54

Finding the Fourth Proportional to 107,699.88, 161,582.79 and 55,146.54

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Solution

The fourth proportional to 107,699.88, 161,582.79 and 55,146.54 is: 82,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,699.88 : 161,582.79 = 55,146.54 : x
  2. Step 2: Convert to fraction form
    107,699.88/161,582.79 = 55,146.54/x
  3. Step 3: Cross multiply
    107,699.88x = 161,582.79 × 55,146.54
  4. Step 4: Simplify right side
    107,699.88x = 8,910,731,792.05
  5. Step 5: Solve for x
    x = 8,910,731,792.05/107,699.88
  6. Step 6: Final answer
    x = 82,736.69

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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.