Home / 127,867.17-191,793.83-39,120.66

Finding the Fourth Proportional to 127,867.17, 191,793.83 and 39,120.66

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Solution

The fourth proportional to 127,867.17, 191,793.83 and 39,120.66 is: 58,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,867.17 : 191,793.83 = 39,120.66 : x
  2. Step 2: Convert to fraction form
    127,867.17/191,793.83 = 39,120.66/x
  3. Step 3: Cross multiply
    127,867.17x = 191,793.83 × 39,120.66
  4. Step 4: Simplify right side
    127,867.17x = 7,503,101,017.92
  5. Step 5: Solve for x
    x = 7,503,101,017.92/127,867.17
  6. Step 6: Final answer
    x = 58,678.87

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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.