Home / 198,634.05-274,083.26-130,678.52

Finding the Fourth Proportional to 198,634.05, 274,083.26 and 130,678.52

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Solution

The fourth proportional to 198,634.05, 274,083.26 and 130,678.52 is: 180,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.05 : 274,083.26 = 130,678.52 : x
  2. Step 2: Convert to fraction form
    198,634.05/274,083.26 = 130,678.52/x
  3. Step 3: Cross multiply
    198,634.05x = 274,083.26 × 130,678.52
  4. Step 4: Simplify right side
    198,634.05x = 35,816,792,749.77
  5. Step 5: Solve for x
    x = 35,816,792,749.77/198,634.05
  6. Step 6: Final answer
    x = 180,315.47

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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.