Home / 198,802.81-274,344.96-108,159.58

Finding the Fourth Proportional to 198,802.81, 274,344.96 and 108,159.58

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Solution

The fourth proportional to 198,802.81, 274,344.96 and 108,159.58 is: 149,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,802.81 : 274,344.96 = 108,159.58 : x
  2. Step 2: Convert to fraction form
    198,802.81/274,344.96 = 108,159.58/x
  3. Step 3: Cross multiply
    198,802.81x = 274,344.96 × 108,159.58
  4. Step 4: Simplify right side
    198,802.81x = 29,673,035,648.72
  5. Step 5: Solve for x
    x = 29,673,035,648.72/198,802.81
  6. Step 6: Final answer
    x = 149,258.63

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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.