Home / 198,831.45-274,387.14-108,187.23

Finding the Fourth Proportional to 198,831.45, 274,387.14 and 108,187.23

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Solution

The fourth proportional to 198,831.45, 274,387.14 and 108,187.23 is: 149,298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,831.45 : 274,387.14 = 108,187.23 : x
  2. Step 2: Convert to fraction form
    198,831.45/274,387.14 = 108,187.23/x
  3. Step 3: Cross multiply
    198,831.45x = 274,387.14 × 108,187.23
  4. Step 4: Simplify right side
    198,831.45x = 29,685,184,624.22
  5. Step 5: Solve for x
    x = 29,685,184,624.22/198,831.45
  6. Step 6: Final answer
    x = 149,298.24

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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.