Home / 185,601.72-256,131.05-100,718.76

Finding the Fourth Proportional to 185,601.72, 256,131.05 and 100,718.76

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Solution

The fourth proportional to 185,601.72, 256,131.05 and 100,718.76 is: 138,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,601.72 : 256,131.05 = 100,718.76 : x
  2. Step 2: Convert to fraction form
    185,601.72/256,131.05 = 100,718.76/x
  3. Step 3: Cross multiply
    185,601.72x = 256,131.05 × 100,718.76
  4. Step 4: Simplify right side
    185,601.72x = 25,797,201,249.90
  5. Step 5: Solve for x
    x = 25,797,201,249.90/185,601.72
  6. Step 6: Final answer
    x = 138,992.25

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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.