Home / 143,677.44-198,255.36-80,002.56

Finding the Fourth Proportional to 143,677.44, 198,255.36 and 80,002.56

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Solution

The fourth proportional to 143,677.44, 198,255.36 and 80,002.56 is: 110,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,677.44 : 198,255.36 = 80,002.56 : x
  2. Step 2: Convert to fraction form
    143,677.44/198,255.36 = 80,002.56/x
  3. Step 3: Cross multiply
    143,677.44x = 198,255.36 × 80,002.56
  4. Step 4: Simplify right side
    143,677.44x = 15,860,936,333.72
  5. Step 5: Solve for x
    x = 15,860,936,333.72/143,677.44
  6. Step 6: Final answer
    x = 110,392.67

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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.