Home / 203,816.24-305,391.44-123,878.66

Finding the Fourth Proportional to 203,816.24, 305,391.44 and 123,878.66

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Solution

The fourth proportional to 203,816.24, 305,391.44 and 123,878.66 is: 185,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,816.24 : 305,391.44 = 123,878.66 : x
  2. Step 2: Convert to fraction form
    203,816.24/305,391.44 = 123,878.66/x
  3. Step 3: Cross multiply
    203,816.24x = 305,391.44 × 123,878.66
  4. Step 4: Simplify right side
    203,816.24x = 37,831,480,941.86
  5. Step 5: Solve for x
    x = 37,831,480,941.86/203,816.24
  6. Step 6: Final answer
    x = 185,615.64

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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.