Home / 221,072.58-331,576.56-108,722.66

Finding the Fourth Proportional to 221,072.58, 331,576.56 and 108,722.66

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Solution

The fourth proportional to 221,072.58, 331,576.56 and 108,722.66 is: 163,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,072.58 : 331,576.56 = 108,722.66 : x
  2. Step 2: Convert to fraction form
    221,072.58/331,576.56 = 108,722.66/x
  3. Step 3: Cross multiply
    221,072.58x = 331,576.56 × 108,722.66
  4. Step 4: Simplify right side
    221,072.58x = 36,049,883,938.97
  5. Step 5: Solve for x
    x = 36,049,883,938.97/221,072.58
  6. Step 6: Final answer
    x = 163,068.09

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1.5x scale

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.