Home / 198,664.77-274,160.81-108,021.35

Finding the Fourth Proportional to 198,664.77, 274,160.81 and 108,021.35

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Solution

The fourth proportional to 198,664.77, 274,160.81 and 108,021.35 is: 149,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,664.77 : 274,160.81 = 108,021.35 : x
  2. Step 2: Convert to fraction form
    198,664.77/274,160.81 = 108,021.35/x
  3. Step 3: Cross multiply
    198,664.77x = 274,160.81 × 108,021.35
  4. Step 4: Simplify right side
    198,664.77x = 29,615,221,768.75
  5. Step 5: Solve for x
    x = 29,615,221,768.75/198,664.77
  6. Step 6: Final answer
    x = 149,071.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.