Home / 136,961.88-189,007.39-83,236.85

Finding the Fourth Proportional to 136,961.88, 189,007.39 and 83,236.85

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Solution

The fourth proportional to 136,961.88, 189,007.39 and 83,236.85 is: 114,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.88 : 189,007.39 = 83,236.85 : x
  2. Step 2: Convert to fraction form
    136,961.88/189,007.39 = 83,236.85/x
  3. Step 3: Cross multiply
    136,961.88x = 189,007.39 × 83,236.85
  4. Step 4: Simplify right side
    136,961.88x = 15,732,379,770.32
  5. Step 5: Solve for x
    x = 15,732,379,770.32/136,961.88
  6. Step 6: Final answer
    x = 114,866.85

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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.