Home / 100,704.72-151,047.24-30,584.64

Finding the Fourth Proportional to 100,704.72, 151,047.24 and 30,584.64

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Solution

The fourth proportional to 100,704.72, 151,047.24 and 30,584.64 is: 45,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,704.72 : 151,047.24 = 30,584.64 : x
  2. Step 2: Convert to fraction form
    100,704.72/151,047.24 = 30,584.64/x
  3. Step 3: Cross multiply
    100,704.72x = 151,047.24 × 30,584.64
  4. Step 4: Simplify right side
    100,704.72x = 4,619,725,458.39
  5. Step 5: Solve for x
    x = 4,619,725,458.39/100,704.72
  6. Step 6: Final answer
    x = 45,873.97

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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.