Home / 100,704.22-151,056.34-47,953.78

Finding the Fourth Proportional to 100,704.22, 151,056.34 and 47,953.78

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Solution

The fourth proportional to 100,704.22, 151,056.34 and 47,953.78 is: 71,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,704.22 : 151,056.34 = 47,953.78 : x
  2. Step 2: Convert to fraction form
    100,704.22/151,056.34 = 47,953.78/x
  3. Step 3: Cross multiply
    100,704.22x = 151,056.34 × 47,953.78
  4. Step 4: Simplify right side
    100,704.22x = 7,243,721,998.44
  5. Step 5: Solve for x
    x = 7,243,721,998.44/100,704.22
  6. Step 6: Final answer
    x = 71,930.67

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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.