Home / 199,009.86-274,166.36-138,476.54

Finding the Fourth Proportional to 199,009.86, 274,166.36 and 138,476.54

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Solution

The fourth proportional to 199,009.86, 274,166.36 and 138,476.54 is: 190,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,009.86 : 274,166.36 = 138,476.54 : x
  2. Step 2: Convert to fraction form
    199,009.86/274,166.36 = 138,476.54/x
  3. Step 3: Cross multiply
    199,009.86x = 274,166.36 × 138,476.54
  4. Step 4: Simplify right side
    199,009.86x = 37,965,608,917.19
  5. Step 5: Solve for x
    x = 37,965,608,917.19/199,009.86
  6. Step 6: Final answer
    x = 190,772.50

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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.