Home / 117,719.28-176,578.92-82,815.12

Finding the Fourth Proportional to 117,719.28, 176,578.92 and 82,815.12

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Solution

The fourth proportional to 117,719.28, 176,578.92 and 82,815.12 is: 124,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,719.28 : 176,578.92 = 82,815.12 : x
  2. Step 2: Convert to fraction form
    117,719.28/176,578.92 = 82,815.12/x
  3. Step 3: Cross multiply
    117,719.28x = 176,578.92 × 82,815.12
  4. Step 4: Simplify right side
    117,719.28x = 14,623,404,449.27
  5. Step 5: Solve for x
    x = 14,623,404,449.27/117,719.28
  6. Step 6: Final answer
    x = 124,222.68

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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.