Home / 239,972.36-331,159.88-131,076.77

Finding the Fourth Proportional to 239,972.36, 331,159.88 and 131,076.77

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Solution

The fourth proportional to 239,972.36, 331,159.88 and 131,076.77 is: 180,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,972.36 : 331,159.88 = 131,076.77 : x
  2. Step 2: Convert to fraction form
    239,972.36/331,159.88 = 131,076.77/x
  3. Step 3: Cross multiply
    239,972.36x = 331,159.88 × 131,076.77
  4. Step 4: Simplify right side
    239,972.36x = 43,407,365,112.80
  5. Step 5: Solve for x
    x = 43,407,365,112.80/239,972.36
  6. Step 6: Final answer
    x = 180,884.86

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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.