Home / 143,161.24-197,561.43-79,499.26

Finding the Fourth Proportional to 143,161.24, 197,561.43 and 79,499.26

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Solution

The fourth proportional to 143,161.24, 197,561.43 and 79,499.26 is: 109,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,161.24 : 197,561.43 = 79,499.26 : x
  2. Step 2: Convert to fraction form
    143,161.24/197,561.43 = 79,499.26/x
  3. Step 3: Cross multiply
    143,161.24x = 197,561.43 × 79,499.26
  4. Step 4: Simplify right side
    143,161.24x = 15,705,987,489.54
  5. Step 5: Solve for x
    x = 15,705,987,489.54/143,161.24
  6. Step 6: Final answer
    x = 109,708.38

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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.