Home / 127,997.78-191,989.48-39,251.04

Finding the Fourth Proportional to 127,997.78, 191,989.48 and 39,251.04

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Solution

The fourth proportional to 127,997.78, 191,989.48 and 39,251.04 is: 58,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,997.78 : 191,989.48 = 39,251.04 : x
  2. Step 2: Convert to fraction form
    127,997.78/191,989.48 = 39,251.04/x
  3. Step 3: Cross multiply
    127,997.78x = 191,989.48 × 39,251.04
  4. Step 4: Simplify right side
    127,997.78x = 7,535,785,602.86
  5. Step 5: Solve for x
    x = 7,535,785,602.86/127,997.78
  6. Step 6: Final answer
    x = 58,874.35

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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.