Home / 235,255.05-352,890.26-111,990.11

Finding the Fourth Proportional to 235,255.05, 352,890.26 and 111,990.11

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Solution

The fourth proportional to 235,255.05, 352,890.26 and 111,990.11 is: 167,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,255.05 : 352,890.26 = 111,990.11 : x
  2. Step 2: Convert to fraction form
    235,255.05/352,890.26 = 111,990.11/x
  3. Step 3: Cross multiply
    235,255.05x = 352,890.26 × 111,990.11
  4. Step 4: Simplify right side
    235,255.05x = 39,520,217,593.15
  5. Step 5: Solve for x
    x = 39,520,217,593.15/235,255.05
  6. Step 6: Final answer
    x = 167,988.82

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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.