Home / 129,175.22-193,777.41-54,281.41

Finding the Fourth Proportional to 129,175.22, 193,777.41 and 54,281.41

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Solution

The fourth proportional to 129,175.22, 193,777.41 and 54,281.41 is: 81,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,175.22 : 193,777.41 = 54,281.41 : x
  2. Step 2: Convert to fraction form
    129,175.22/193,777.41 = 54,281.41/x
  3. Step 3: Cross multiply
    129,175.22x = 193,777.41 × 54,281.41
  4. Step 4: Simplify right side
    129,175.22x = 10,518,511,040.95
  5. Step 5: Solve for x
    x = 10,518,511,040.95/129,175.22
  6. Step 6: Final answer
    x = 81,428.24

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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.