Home / 106,239.06-159,321.45-31,339.32

Finding the Fourth Proportional to 106,239.06, 159,321.45 and 31,339.32

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Solution

The fourth proportional to 106,239.06, 159,321.45 and 31,339.32 is: 46,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,239.06 : 159,321.45 = 31,339.32 : x
  2. Step 2: Convert to fraction form
    106,239.06/159,321.45 = 31,339.32/x
  3. Step 3: Cross multiply
    106,239.06x = 159,321.45 × 31,339.32
  4. Step 4: Simplify right side
    106,239.06x = 4,993,025,904.41
  5. Step 5: Solve for x
    x = 4,993,025,904.41/106,239.06
  6. Step 6: Final answer
    x = 46,998.02

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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.