Home / 198,964.69-274,572.93-108,321.28

Finding the Fourth Proportional to 198,964.69, 274,572.93 and 108,321.28

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Solution

The fourth proportional to 198,964.69, 274,572.93 and 108,321.28 is: 149,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,964.69 : 274,572.93 = 108,321.28 : x
  2. Step 2: Convert to fraction form
    198,964.69/274,572.93 = 108,321.28/x
  3. Step 3: Cross multiply
    198,964.69x = 274,572.93 × 108,321.28
  4. Step 4: Simplify right side
    198,964.69x = 29,742,091,230.95
  5. Step 5: Solve for x
    x = 29,742,091,230.95/198,964.69
  6. Step 6: Final answer
    x = 149,484.27

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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.