Home / 198,818.03-274,366.76-118,243.79

Finding the Fourth Proportional to 198,818.03, 274,366.76 and 118,243.79

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Solution

The fourth proportional to 198,818.03, 274,366.76 and 118,243.79 is: 163,175.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,818.03 : 274,366.76 = 118,243.79 : x
  2. Step 2: Convert to fraction form
    198,818.03/274,366.76 = 118,243.79/x
  3. Step 3: Cross multiply
    198,818.03x = 274,366.76 × 118,243.79
  4. Step 4: Simplify right side
    198,818.03x = 32,442,164,961.20
  5. Step 5: Solve for x
    x = 32,442,164,961.20/198,818.03
  6. Step 6: Final answer
    x = 163,175.17

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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.