Home / 109,939.69-164,910.19-31,054.60

Finding the Fourth Proportional to 109,939.69, 164,910.19 and 31,054.60

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Solution

The fourth proportional to 109,939.69, 164,910.19 and 31,054.60 is: 46,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,939.69 : 164,910.19 = 31,054.60 : x
  2. Step 2: Convert to fraction form
    109,939.69/164,910.19 = 31,054.60/x
  3. Step 3: Cross multiply
    109,939.69x = 164,910.19 × 31,054.60
  4. Step 4: Simplify right side
    109,939.69x = 5,121,219,986.37
  5. Step 5: Solve for x
    x = 5,121,219,986.37/109,939.69
  6. Step 6: Final answer
    x = 46,582.09

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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.