Home / 187,183.36-280,804.20-112,285.90

Finding the Fourth Proportional to 187,183.36, 280,804.20 and 112,285.90

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Solution

The fourth proportional to 187,183.36, 280,804.20 and 112,285.90 is: 168,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,183.36 : 280,804.20 = 112,285.90 : x
  2. Step 2: Convert to fraction form
    187,183.36/280,804.20 = 112,285.90/x
  3. Step 3: Cross multiply
    187,183.36x = 280,804.20 × 112,285.90
  4. Step 4: Simplify right side
    187,183.36x = 31,530,352,320.78
  5. Step 5: Solve for x
    x = 31,530,352,320.78/187,183.36
  6. Step 6: Final answer
    x = 168,446.34

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1.5x scale

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.