Home / 140,221.44-193,503.84-76,558.56

Finding the Fourth Proportional to 140,221.44, 193,503.84 and 76,558.56

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Solution

The fourth proportional to 140,221.44, 193,503.84 and 76,558.56 is: 105,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,221.44 : 193,503.84 = 76,558.56 : x
  2. Step 2: Convert to fraction form
    140,221.44/193,503.84 = 76,558.56/x
  3. Step 3: Cross multiply
    140,221.44x = 193,503.84 × 76,558.56
  4. Step 4: Simplify right side
    140,221.44x = 14,814,375,344.87
  5. Step 5: Solve for x
    x = 14,814,375,344.87/140,221.44
  6. Step 6: Final answer
    x = 105,649.86

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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.