Home / 185,638.06-256,180.76-100,755.15

Finding the Fourth Proportional to 185,638.06, 256,180.76 and 100,755.15

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Solution

The fourth proportional to 185,638.06, 256,180.76 and 100,755.15 is: 139,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,638.06 : 256,180.76 = 100,755.15 : x
  2. Step 2: Convert to fraction form
    185,638.06/256,180.76 = 100,755.15/x
  3. Step 3: Cross multiply
    185,638.06x = 256,180.76 × 100,755.15
  4. Step 4: Simplify right side
    185,638.06x = 25,811,530,900.91
  5. Step 5: Solve for x
    x = 25,811,530,900.91/185,638.06
  6. Step 6: Final answer
    x = 139,042.24

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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.