Home / 154,731.36-231,946.38-79,935.96

Finding the Fourth Proportional to 154,731.36, 231,946.38 and 79,935.96

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Solution

The fourth proportional to 154,731.36, 231,946.38 and 79,935.96 is: 119,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,731.36 : 231,946.38 = 79,935.96 : x
  2. Step 2: Convert to fraction form
    154,731.36/231,946.38 = 79,935.96/x
  3. Step 3: Cross multiply
    154,731.36x = 231,946.38 × 79,935.96
  4. Step 4: Simplify right side
    154,731.36x = 18,540,856,553.82
  5. Step 5: Solve for x
    x = 18,540,856,553.82/154,731.36
  6. Step 6: Final answer
    x = 119,826.11

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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.