Home / 106,353.78-159,553.74-31,479.19

Finding the Fourth Proportional to 106,353.78, 159,553.74 and 31,479.19

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Solution

The fourth proportional to 106,353.78, 159,553.74 and 31,479.19 is: 47,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,353.78 : 159,553.74 = 31,479.19 : x
  2. Step 2: Convert to fraction form
    106,353.78/159,553.74 = 31,479.19/x
  3. Step 3: Cross multiply
    106,353.78x = 159,553.74 × 31,479.19
  4. Step 4: Simplify right side
    106,353.78x = 5,022,622,496.67
  5. Step 5: Solve for x
    x = 5,022,622,496.67/106,353.78
  6. Step 6: Final answer
    x = 47,225.61

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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.