Home / 127,687.36-191,530.53-38,940.61

Finding the Fourth Proportional to 127,687.36, 191,530.53 and 38,940.61

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Solution

The fourth proportional to 127,687.36, 191,530.53 and 38,940.61 is: 58,410.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,687.36 : 191,530.53 = 38,940.61 : x
  2. Step 2: Convert to fraction form
    127,687.36/191,530.53 = 38,940.61/x
  3. Step 3: Cross multiply
    127,687.36x = 191,530.53 × 38,940.61
  4. Step 4: Simplify right side
    127,687.36x = 7,458,315,671.82
  5. Step 5: Solve for x
    x = 7,458,315,671.82/127,687.36
  6. Step 6: Final answer
    x = 58,410.76

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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.