Home / 106,238.89-159,321.20-31,339.16

Finding the Fourth Proportional to 106,238.89, 159,321.20 and 31,339.16

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Solution

The fourth proportional to 106,238.89, 159,321.20 and 31,339.16 is: 46,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,238.89 : 159,321.20 = 31,339.16 : x
  2. Step 2: Convert to fraction form
    106,238.89/159,321.20 = 31,339.16/x
  3. Step 3: Cross multiply
    106,238.89x = 159,321.20 × 31,339.16
  4. Step 4: Simplify right side
    106,238.89x = 4,992,992,398.63
  5. Step 5: Solve for x
    x = 4,992,992,398.63/106,238.89
  6. Step 6: Final answer
    x = 46,997.78

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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.