Home / 107,809.12-161,708.28-41,281.12

Finding the Fourth Proportional to 107,809.12, 161,708.28 and 41,281.12

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Solution

The fourth proportional to 107,809.12, 161,708.28 and 41,281.12 is: 61,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,809.12 : 161,708.28 = 41,281.12 : x
  2. Step 2: Convert to fraction form
    107,809.12/161,708.28 = 41,281.12/x
  3. Step 3: Cross multiply
    107,809.12x = 161,708.28 × 41,281.12
  4. Step 4: Simplify right side
    107,809.12x = 6,675,498,911.67
  5. Step 5: Solve for x
    x = 6,675,498,911.67/107,809.12
  6. Step 6: Final answer
    x = 61,919.61

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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.