Home / 175,761.72-242,568.60-100,321.56

Finding the Fourth Proportional to 175,761.72, 242,568.60 and 100,321.56

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Solution

The fourth proportional to 175,761.72, 242,568.60 and 100,321.56 is: 138,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,761.72 : 242,568.60 = 100,321.56 : x
  2. Step 2: Convert to fraction form
    175,761.72/242,568.60 = 100,321.56/x
  3. Step 3: Cross multiply
    175,761.72x = 242,568.60 × 100,321.56
  4. Step 4: Simplify right side
    175,761.72x = 24,334,860,359.02
  5. Step 5: Solve for x
    x = 24,334,860,359.02/175,761.72
  6. Step 6: Final answer
    x = 138,453.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.