Home / 118,589.89-177,943.28-55,414.38

Finding the Fourth Proportional to 118,589.89, 177,943.28 and 55,414.38

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Solution

The fourth proportional to 118,589.89, 177,943.28 and 55,414.38 is: 83,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,589.89 : 177,943.28 = 55,414.38 : x
  2. Step 2: Convert to fraction form
    118,589.89/177,943.28 = 55,414.38/x
  3. Step 3: Cross multiply
    118,589.89x = 177,943.28 × 55,414.38
  4. Step 4: Simplify right side
    118,589.89x = 9,860,616,754.28
  5. Step 5: Solve for x
    x = 9,860,616,754.28/118,589.89
  6. Step 6: Final answer
    x = 83,148.88

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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.