Home / 143,431.26-197,940.60-79,773.66

Finding the Fourth Proportional to 143,431.26, 197,940.60 and 79,773.66

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Solution

The fourth proportional to 143,431.26, 197,940.60 and 79,773.66 is: 110,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,431.26 : 197,940.60 = 79,773.66 : x
  2. Step 2: Convert to fraction form
    143,431.26/197,940.60 = 79,773.66/x
  3. Step 3: Cross multiply
    143,431.26x = 197,940.60 × 79,773.66
  4. Step 4: Simplify right side
    143,431.26x = 15,790,446,124.60
  5. Step 5: Solve for x
    x = 15,790,446,124.60/143,431.26
  6. Step 6: Final answer
    x = 110,090.69

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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.