Home / 142,183.44-213,406.36-72,111.96

Finding the Fourth Proportional to 142,183.44, 213,406.36 and 72,111.96

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Solution

The fourth proportional to 142,183.44, 213,406.36 and 72,111.96 is: 108,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,183.44 : 213,406.36 = 72,111.96 : x
  2. Step 2: Convert to fraction form
    142,183.44/213,406.36 = 72,111.96/x
  3. Step 3: Cross multiply
    142,183.44x = 213,406.36 × 72,111.96
  4. Step 4: Simplify right side
    142,183.44x = 15,389,150,896.07
  5. Step 5: Solve for x
    x = 15,389,150,896.07/142,183.44
  6. Step 6: Final answer
    x = 108,234.48

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1.5x scale

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.