Home / 198,786.36-274,234.84-118,168.07

Finding the Fourth Proportional to 198,786.36, 274,234.84 and 118,168.07

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Solution

The fourth proportional to 198,786.36, 274,234.84 and 118,168.07 is: 163,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,786.36 : 274,234.84 = 118,168.07 : x
  2. Step 2: Convert to fraction form
    198,786.36/274,234.84 = 118,168.07/x
  3. Step 3: Cross multiply
    198,786.36x = 274,234.84 × 118,168.07
  4. Step 4: Simplify right side
    198,786.36x = 32,405,802,159.73
  5. Step 5: Solve for x
    x = 32,405,802,159.73/198,786.36
  6. Step 6: Final answer
    x = 163,018.24

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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.