Home / 168,163.45-252,244.26-72,086.51

Finding the Fourth Proportional to 168,163.45, 252,244.26 and 72,086.51

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Solution

The fourth proportional to 168,163.45, 252,244.26 and 72,086.51 is: 108,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,163.45 : 252,244.26 = 72,086.51 : x
  2. Step 2: Convert to fraction form
    168,163.45/252,244.26 = 72,086.51/x
  3. Step 3: Cross multiply
    168,163.45x = 252,244.26 × 72,086.51
  4. Step 4: Simplify right side
    168,163.45x = 18,183,409,001.54
  5. Step 5: Solve for x
    x = 18,183,409,001.54/168,163.45
  6. Step 6: Final answer
    x = 108,129.38

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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.