Home / 185,921.23-256,498.86-137,638.73

Finding the Fourth Proportional to 185,921.23, 256,498.86 and 137,638.73

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Solution

The fourth proportional to 185,921.23, 256,498.86 and 137,638.73 is: 189,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,921.23 : 256,498.86 = 137,638.73 : x
  2. Step 2: Convert to fraction form
    185,921.23/256,498.86 = 137,638.73/x
  3. Step 3: Cross multiply
    185,921.23x = 256,498.86 × 137,638.73
  4. Step 4: Simplify right side
    185,921.23x = 35,304,177,336.85
  5. Step 5: Solve for x
    x = 35,304,177,336.85/185,921.23
  6. Step 6: Final answer
    x = 189,887.82

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1.5x scale

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.