Home / 203,668.03-305,429.14-70,512.54

Finding the Fourth Proportional to 203,668.03, 305,429.14 and 70,512.54

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Solution

The fourth proportional to 203,668.03, 305,429.14 and 70,512.54 is: 105,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,668.03 : 305,429.14 = 70,512.54 : x
  2. Step 2: Convert to fraction form
    203,668.03/305,429.14 = 70,512.54/x
  3. Step 3: Cross multiply
    203,668.03x = 305,429.14 × 70,512.54
  4. Step 4: Simplify right side
    203,668.03x = 21,536,584,451.42
  5. Step 5: Solve for x
    x = 21,536,584,451.42/203,668.03
  6. Step 6: Final answer
    x = 105,743.57

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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.