Home / 117,872.20-176,667.66-82,139.96

Finding the Fourth Proportional to 117,872.20, 176,667.66 and 82,139.96

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Solution

The fourth proportional to 117,872.20, 176,667.66 and 82,139.96 is: 123,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,872.20 : 176,667.66 = 82,139.96 : x
  2. Step 2: Convert to fraction form
    117,872.20/176,667.66 = 82,139.96/x
  3. Step 3: Cross multiply
    117,872.20x = 176,667.66 × 82,139.96
  4. Step 4: Simplify right side
    117,872.20x = 14,511,474,525.69
  5. Step 5: Solve for x
    x = 14,511,474,525.69/117,872.20
  6. Step 6: Final answer
    x = 123,111.93

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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.