Home / 203,869.34-305,780.23-54,121.26

Finding the Fourth Proportional to 203,869.34, 305,780.23 and 54,121.26

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Solution

The fourth proportional to 203,869.34, 305,780.23 and 54,121.26 is: 81,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,869.34 : 305,780.23 = 54,121.26 : x
  2. Step 2: Convert to fraction form
    203,869.34/305,780.23 = 54,121.26/x
  3. Step 3: Cross multiply
    203,869.34x = 305,780.23 × 54,121.26
  4. Step 4: Simplify right side
    203,869.34x = 16,549,211,330.69
  5. Step 5: Solve for x
    x = 16,549,211,330.69/203,869.34
  6. Step 6: Final answer
    x = 81,175.58

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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.