Home / 143,684.76-198,284.97-80,022.55

Finding the Fourth Proportional to 143,684.76, 198,284.97 and 80,022.55

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Solution

The fourth proportional to 143,684.76, 198,284.97 and 80,022.55 is: 110,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,684.76 : 198,284.97 = 80,022.55 : x
  2. Step 2: Convert to fraction form
    143,684.76/198,284.97 = 80,022.55/x
  3. Step 3: Cross multiply
    143,684.76x = 198,284.97 × 80,022.55
  4. Step 4: Simplify right side
    143,684.76x = 15,867,268,926.07
  5. Step 5: Solve for x
    x = 15,867,268,926.07/143,684.76
  6. Step 6: Final answer
    x = 110,431.12

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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.