Home / 185,721.54-256,311.59-105,163.26

Finding the Fourth Proportional to 185,721.54, 256,311.59 and 105,163.26

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Solution

The fourth proportional to 185,721.54, 256,311.59 and 105,163.26 is: 145,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,721.54 : 256,311.59 = 105,163.26 : x
  2. Step 2: Convert to fraction form
    185,721.54/256,311.59 = 105,163.26/x
  3. Step 3: Cross multiply
    185,721.54x = 256,311.59 × 105,163.26
  4. Step 4: Simplify right side
    185,721.54x = 26,954,561,854.37
  5. Step 5: Solve for x
    x = 26,954,561,854.37/185,721.54
  6. Step 6: Final answer
    x = 145,134.28

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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.