Home / 198,566.40-274,018.56-109,140.48

Finding the Fourth Proportional to 198,566.40, 274,018.56 and 109,140.48

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Solution

The fourth proportional to 198,566.40, 274,018.56 and 109,140.48 is: 150,612.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,566.40 : 274,018.56 = 109,140.48 : x
  2. Step 2: Convert to fraction form
    198,566.40/274,018.56 = 109,140.48/x
  3. Step 3: Cross multiply
    198,566.40x = 274,018.56 × 109,140.48
  4. Step 4: Simplify right side
    198,566.40x = 29,906,517,167.31
  5. Step 5: Solve for x
    x = 29,906,517,167.31/198,566.40
  6. Step 6: Final answer
    x = 150,612.17

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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.