Home / 143,524.35-198,065.39-79,001.03

Finding the Fourth Proportional to 143,524.35, 198,065.39 and 79,001.03

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Solution

The fourth proportional to 143,524.35, 198,065.39 and 79,001.03 is: 109,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,524.35 : 198,065.39 = 79,001.03 : x
  2. Step 2: Convert to fraction form
    143,524.35/198,065.39 = 79,001.03/x
  3. Step 3: Cross multiply
    143,524.35x = 198,065.39 × 79,001.03
  4. Step 4: Simplify right side
    143,524.35x = 15,647,369,917.51
  5. Step 5: Solve for x
    x = 15,647,369,917.51/143,524.35
  6. Step 6: Final answer
    x = 109,022.41

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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.