Home / 235,121.42-324,566.78-158,743.91

Finding the Fourth Proportional to 235,121.42, 324,566.78 and 158,743.91

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Solution

The fourth proportional to 235,121.42, 324,566.78 and 158,743.91 is: 219,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,121.42 : 324,566.78 = 158,743.91 : x
  2. Step 2: Convert to fraction form
    235,121.42/324,566.78 = 158,743.91/x
  3. Step 3: Cross multiply
    235,121.42x = 324,566.78 × 158,743.91
  4. Step 4: Simplify right side
    235,121.42x = 51,522,997,296.76
  5. Step 5: Solve for x
    x = 51,522,997,296.76/235,121.42
  6. Step 6: Final answer
    x = 219,133.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.