Home / 143,675.55-198,258.07-80,019.27

Finding the Fourth Proportional to 143,675.55, 198,258.07 and 80,019.27

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Solution

The fourth proportional to 143,675.55, 198,258.07 and 80,019.27 is: 110,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,675.55 : 198,258.07 = 80,019.27 : x
  2. Step 2: Convert to fraction form
    143,675.55/198,258.07 = 80,019.27/x
  3. Step 3: Cross multiply
    143,675.55x = 198,258.07 × 80,019.27
  4. Step 4: Simplify right side
    143,675.55x = 15,864,466,033.01
  5. Step 5: Solve for x
    x = 15,864,466,033.01/143,675.55
  6. Step 6: Final answer
    x = 110,418.69

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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.