Home / 155,334.92-231,868.37-133,289.96

Finding the Fourth Proportional to 155,334.92, 231,868.37 and 133,289.96

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Solution

The fourth proportional to 155,334.92, 231,868.37 and 133,289.96 is: 198,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,334.92 : 231,868.37 = 133,289.96 : x
  2. Step 2: Convert to fraction form
    155,334.92/231,868.37 = 133,289.96/x
  3. Step 3: Cross multiply
    155,334.92x = 231,868.37 × 133,289.96
  4. Step 4: Simplify right side
    155,334.92x = 30,905,724,936.45
  5. Step 5: Solve for x
    x = 30,905,724,936.45/155,334.92
  6. Step 6: Final answer
    x = 198,961.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.