Home / 143,581.24-198,148.64-79,923.16

Finding the Fourth Proportional to 143,581.24, 198,148.64 and 79,923.16

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Solution

The fourth proportional to 143,581.24, 198,148.64 and 79,923.16 is: 110,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,581.24 : 198,148.64 = 79,923.16 : x
  2. Step 2: Convert to fraction form
    143,581.24/198,148.64 = 79,923.16/x
  3. Step 3: Cross multiply
    143,581.24x = 198,148.64 × 79,923.16
  4. Step 4: Simplify right side
    143,581.24x = 15,836,665,458.50
  5. Step 5: Solve for x
    x = 15,836,665,458.50/143,581.24
  6. Step 6: Final answer
    x = 110,297.59

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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.