Home / 203,664.89-305,512.32-53,904.16

Finding the Fourth Proportional to 203,664.89, 305,512.32 and 53,904.16

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Solution

The fourth proportional to 203,664.89, 305,512.32 and 53,904.16 is: 80,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,664.89 : 305,512.32 = 53,904.16 : x
  2. Step 2: Convert to fraction form
    203,664.89/305,512.32 = 53,904.16/x
  3. Step 3: Cross multiply
    203,664.89x = 305,512.32 × 53,904.16
  4. Step 4: Simplify right side
    203,664.89x = 16,468,384,979.25
  5. Step 5: Solve for x
    x = 16,468,384,979.25/203,664.89
  6. Step 6: Final answer
    x = 80,860.21

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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.