Home / 127,921.72-191,922.54-43,683.88

Finding the Fourth Proportional to 127,921.72, 191,922.54 and 43,683.88

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Solution

The fourth proportional to 127,921.72, 191,922.54 and 43,683.88 is: 65,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,921.72 : 191,922.54 = 43,683.88 : x
  2. Step 2: Convert to fraction form
    127,921.72/191,922.54 = 43,683.88/x
  3. Step 3: Cross multiply
    127,921.72x = 191,922.54 × 43,683.88
  4. Step 4: Simplify right side
    127,921.72x = 8,383,921,206.66
  5. Step 5: Solve for x
    x = 8,383,921,206.66/127,921.72
  6. Step 6: Final answer
    x = 65,539.47

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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.