Home / 100,851.18-151,072.92-50,861.76

Finding the Fourth Proportional to 100,851.18, 151,072.92 and 50,861.76

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Solution

The fourth proportional to 100,851.18, 151,072.92 and 50,861.76 is: 76,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.18 : 151,072.92 = 50,861.76 : x
  2. Step 2: Convert to fraction form
    100,851.18/151,072.92 = 50,861.76/x
  3. Step 3: Cross multiply
    100,851.18x = 151,072.92 × 50,861.76
  4. Step 4: Simplify right side
    100,851.18x = 7,683,834,599.54
  5. Step 5: Solve for x
    x = 7,683,834,599.54/100,851.18
  6. Step 6: Final answer
    x = 76,189.83

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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.