Home / 198,078.31-296,610.36-109,233.26

Finding the Fourth Proportional to 198,078.31, 296,610.36 and 109,233.26

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Solution

The fourth proportional to 198,078.31, 296,610.36 and 109,233.26 is: 163,570.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,078.31 : 296,610.36 = 109,233.26 : x
  2. Step 2: Convert to fraction form
    198,078.31/296,610.36 = 109,233.26/x
  3. Step 3: Cross multiply
    198,078.31x = 296,610.36 × 109,233.26
  4. Step 4: Simplify right side
    198,078.31x = 32,399,715,792.19
  5. Step 5: Solve for x
    x = 32,399,715,792.19/198,078.31
  6. Step 6: Final answer
    x = 163,570.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.