Home / 127,385.35-191,105.19-43,142.56

Finding the Fourth Proportional to 127,385.35, 191,105.19 and 43,142.56

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Solution

The fourth proportional to 127,385.35, 191,105.19 and 43,142.56 is: 64,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,385.35 : 191,105.19 = 43,142.56 : x
  2. Step 2: Convert to fraction form
    127,385.35/191,105.19 = 43,142.56/x
  3. Step 3: Cross multiply
    127,385.35x = 191,105.19 × 43,142.56
  4. Step 4: Simplify right side
    127,385.35x = 8,244,767,272.34
  5. Step 5: Solve for x
    x = 8,244,767,272.34/127,385.35
  6. Step 6: Final answer
    x = 64,723.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.