Home / 114,683.76-172,049.56-57,789.64

Finding the Fourth Proportional to 114,683.76, 172,049.56 and 57,789.64

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Solution

The fourth proportional to 114,683.76, 172,049.56 and 57,789.64 is: 86,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,683.76 : 172,049.56 = 57,789.64 : x
  2. Step 2: Convert to fraction form
    114,683.76/172,049.56 = 57,789.64/x
  3. Step 3: Cross multiply
    114,683.76x = 172,049.56 × 57,789.64
  4. Step 4: Simplify right side
    114,683.76x = 9,942,682,205.15
  5. Step 5: Solve for x
    x = 9,942,682,205.15/114,683.76
  6. Step 6: Final answer
    x = 86,696.51

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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.