Home / 204,405.75-281,838.60-139,906.05

Finding the Fourth Proportional to 204,405.75, 281,838.60 and 139,906.05

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Solution

The fourth proportional to 204,405.75, 281,838.60 and 139,906.05 is: 192,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,405.75 : 281,838.60 = 139,906.05 : x
  2. Step 2: Convert to fraction form
    204,405.75/281,838.60 = 139,906.05/x
  3. Step 3: Cross multiply
    204,405.75x = 281,838.60 × 139,906.05
  4. Step 4: Simplify right side
    204,405.75x = 39,430,925,263.53
  5. Step 5: Solve for x
    x = 39,430,925,263.53/204,405.75
  6. Step 6: Final answer
    x = 192,905.17

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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.