Home / 106,118.96-159,123.66-31,229.38

Finding the Fourth Proportional to 106,118.96, 159,123.66 and 31,229.38

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Solution

The fourth proportional to 106,118.96, 159,123.66 and 31,229.38 is: 46,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,118.96 : 159,123.66 = 31,229.38 : x
  2. Step 2: Convert to fraction form
    106,118.96/159,123.66 = 31,229.38/x
  3. Step 3: Cross multiply
    106,118.96x = 159,123.66 × 31,229.38
  4. Step 4: Simplify right side
    106,118.96x = 4,969,333,590.42
  5. Step 5: Solve for x
    x = 4,969,333,590.42/106,118.96
  6. Step 6: Final answer
    x = 46,827.95

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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.