Home / 117,961.28-162,787.62-64,246.54

Finding the Fourth Proportional to 117,961.28, 162,787.62 and 64,246.54

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Solution

The fourth proportional to 117,961.28, 162,787.62 and 64,246.54 is: 88,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.28 : 162,787.62 = 64,246.54 : x
  2. Step 2: Convert to fraction form
    117,961.28/162,787.62 = 64,246.54/x
  3. Step 3: Cross multiply
    117,961.28x = 162,787.62 × 64,246.54
  4. Step 4: Simplify right side
    117,961.28x = 10,458,541,339.83
  5. Step 5: Solve for x
    x = 10,458,541,339.83/117,961.28
  6. Step 6: Final answer
    x = 88,660.80

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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.