Home / 106,826.72-147,382.08-82,305.60

Finding the Fourth Proportional to 106,826.72, 147,382.08 and 82,305.60

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Solution

The fourth proportional to 106,826.72, 147,382.08 and 82,305.60 is: 113,551.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,826.72 : 147,382.08 = 82,305.60 : x
  2. Step 2: Convert to fraction form
    106,826.72/147,382.08 = 82,305.60/x
  3. Step 3: Cross multiply
    106,826.72x = 147,382.08 × 82,305.60
  4. Step 4: Simplify right side
    106,826.72x = 12,130,370,523.65
  5. Step 5: Solve for x
    x = 12,130,370,523.65/106,826.72
  6. Step 6: Final answer
    x = 113,551.84

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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.