Home / 185,761.25-256,348.26-100,878.92

Finding the Fourth Proportional to 185,761.25, 256,348.26 and 100,878.92

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Solution

The fourth proportional to 185,761.25, 256,348.26 and 100,878.92 is: 139,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,761.25 : 256,348.26 = 100,878.92 : x
  2. Step 2: Convert to fraction form
    185,761.25/256,348.26 = 100,878.92/x
  3. Step 3: Cross multiply
    185,761.25x = 256,348.26 × 100,878.92
  4. Step 4: Simplify right side
    185,761.25x = 25,860,134,330.94
  5. Step 5: Solve for x
    x = 25,860,134,330.94/185,761.25
  6. Step 6: Final answer
    x = 139,211.68

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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.