Home / 144,431.10-199,324.60-80,768.81

Finding the Fourth Proportional to 144,431.10, 199,324.60 and 80,768.81

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Solution

The fourth proportional to 144,431.10, 199,324.60 and 80,768.81 is: 111,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,431.10 : 199,324.60 = 80,768.81 : x
  2. Step 2: Convert to fraction form
    144,431.10/199,324.60 = 80,768.81/x
  3. Step 3: Cross multiply
    144,431.10x = 199,324.60 × 80,768.81
  4. Step 4: Simplify right side
    144,431.10x = 16,099,211,042.12
  5. Step 5: Solve for x
    x = 16,099,211,042.12/144,431.10
  6. Step 6: Final answer
    x = 111,466.37

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1.5x scale

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.