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Finding the Fourth Proportional to 101,183.48, 139,637.87 and 55,867.89

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Solution

The fourth proportional to 101,183.48, 139,637.87 and 55,867.89 is: 77,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,183.48 : 139,637.87 = 55,867.89 : x
  2. Step 2: Convert to fraction form
    101,183.48/139,637.87 = 55,867.89/x
  3. Step 3: Cross multiply
    101,183.48x = 139,637.87 × 55,867.89
  4. Step 4: Simplify right side
    101,183.48x = 7,801,273,929.06
  5. Step 5: Solve for x
    x = 7,801,273,929.06/101,183.48
  6. Step 6: Final answer
    x = 77,100.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.