Home / 203,923.45-305,885.18-133,064.65

Finding the Fourth Proportional to 203,923.45, 305,885.18 and 133,064.65

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Solution

The fourth proportional to 203,923.45, 305,885.18 and 133,064.65 is: 199,596.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,923.45 : 305,885.18 = 133,064.65 : x
  2. Step 2: Convert to fraction form
    203,923.45/305,885.18 = 133,064.65/x
  3. Step 3: Cross multiply
    203,923.45x = 305,885.18 × 133,064.65
  4. Step 4: Simplify right side
    203,923.45x = 40,702,504,416.89
  5. Step 5: Solve for x
    x = 40,702,504,416.89/203,923.45
  6. Step 6: Final answer
    x = 199,596.98

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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.