Home / 198,869.39-274,445.93-112,831.98

Finding the Fourth Proportional to 198,869.39, 274,445.93 and 112,831.98

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Solution

The fourth proportional to 198,869.39, 274,445.93 and 112,831.98 is: 155,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,869.39 : 274,445.93 = 112,831.98 : x
  2. Step 2: Convert to fraction form
    198,869.39/274,445.93 = 112,831.98/x
  3. Step 3: Cross multiply
    198,869.39x = 274,445.93 × 112,831.98
  4. Step 4: Simplify right side
    198,869.39x = 30,966,277,120.68
  5. Step 5: Solve for x
    x = 30,966,277,120.68/198,869.39
  6. Step 6: Final answer
    x = 155,711.64

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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.