Home / 198,831.64-274,314.18-118,262.56

Finding the Fourth Proportional to 198,831.64, 274,314.18 and 118,262.56

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Solution

The fourth proportional to 198,831.64, 274,314.18 and 118,262.56 is: 163,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,831.64 : 274,314.18 = 118,262.56 : x
  2. Step 2: Convert to fraction form
    198,831.64/274,314.18 = 118,262.56/x
  3. Step 3: Cross multiply
    198,831.64x = 274,314.18 × 118,262.56
  4. Step 4: Simplify right side
    198,831.64x = 32,441,097,171.10
  5. Step 5: Solve for x
    x = 32,441,097,171.10/198,831.64
  6. Step 6: Final answer
    x = 163,158.63

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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.