Home / 107,243.32-160,780.86-67,717.39

Finding the Fourth Proportional to 107,243.32, 160,780.86 and 67,717.39

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Solution

The fourth proportional to 107,243.32, 160,780.86 and 67,717.39 is: 101,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,243.32 : 160,780.86 = 67,717.39 : x
  2. Step 2: Convert to fraction form
    107,243.32/160,780.86 = 67,717.39/x
  3. Step 3: Cross multiply
    107,243.32x = 160,780.86 × 67,717.39
  4. Step 4: Simplify right side
    107,243.32x = 10,887,660,201.16
  5. Step 5: Solve for x
    x = 10,887,660,201.16/107,243.32
  6. Step 6: Final answer
    x = 101,522.97

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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.