Home / 198,688.80-274,185.36-118,116.48

Finding the Fourth Proportional to 198,688.80, 274,185.36 and 118,116.48

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Solution

The fourth proportional to 198,688.80, 274,185.36 and 118,116.48 is: 162,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,688.80 : 274,185.36 = 118,116.48 : x
  2. Step 2: Convert to fraction form
    198,688.80/274,185.36 = 118,116.48/x
  3. Step 3: Cross multiply
    198,688.80x = 274,185.36 × 118,116.48
  4. Step 4: Simplify right side
    198,688.80x = 32,385,809,590.73
  5. Step 5: Solve for x
    x = 32,385,809,590.73/198,688.80
  6. Step 6: Final answer
    x = 162,997.66

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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.