Home / 185,640.27-256,176.72-100,755.51

Finding the Fourth Proportional to 185,640.27, 256,176.72 and 100,755.51

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Solution

The fourth proportional to 185,640.27, 256,176.72 and 100,755.51 is: 139,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,640.27 : 256,176.72 = 100,755.51 : x
  2. Step 2: Convert to fraction form
    185,640.27/256,176.72 = 100,755.51/x
  3. Step 3: Cross multiply
    185,640.27x = 256,176.72 × 100,755.51
  4. Step 4: Simplify right side
    185,640.27x = 25,811,216,073.73
  5. Step 5: Solve for x
    x = 25,811,216,073.73/185,640.27
  6. Step 6: Final answer
    x = 139,038.88

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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.