Home / 131,123.98-196,537.11-115,298.38

Finding the Fourth Proportional to 131,123.98, 196,537.11 and 115,298.38

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Solution

The fourth proportional to 131,123.98, 196,537.11 and 115,298.38 is: 172,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,123.98 : 196,537.11 = 115,298.38 : x
  2. Step 2: Convert to fraction form
    131,123.98/196,537.11 = 115,298.38/x
  3. Step 3: Cross multiply
    131,123.98x = 196,537.11 × 115,298.38
  4. Step 4: Simplify right side
    131,123.98x = 22,660,410,392.88
  5. Step 5: Solve for x
    x = 22,660,410,392.88/131,123.98
  6. Step 6: Final answer
    x = 172,816.68

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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.