Home / 154,015.45-231,096.61-83,893.21

Finding the Fourth Proportional to 154,015.45, 231,096.61 and 83,893.21

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Solution

The fourth proportional to 154,015.45, 231,096.61 and 83,893.21 is: 125,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,015.45 : 231,096.61 = 83,893.21 : x
  2. Step 2: Convert to fraction form
    154,015.45/231,096.61 = 83,893.21/x
  3. Step 3: Cross multiply
    154,015.45x = 231,096.61 × 83,893.21
  4. Step 4: Simplify right side
    154,015.45x = 19,387,435,960.14
  5. Step 5: Solve for x
    x = 19,387,435,960.14/154,015.45
  6. Step 6: Final answer
    x = 125,879.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.