Home / 143,542.76-198,066.60-79,880.36

Finding the Fourth Proportional to 143,542.76, 198,066.60 and 79,880.36

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Solution

The fourth proportional to 143,542.76, 198,066.60 and 79,880.36 is: 110,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,542.76 : 198,066.60 = 79,880.36 : x
  2. Step 2: Convert to fraction form
    143,542.76/198,066.60 = 79,880.36/x
  3. Step 3: Cross multiply
    143,542.76x = 198,066.60 × 79,880.36
  4. Step 4: Simplify right side
    143,542.76x = 15,821,631,311.98
  5. Step 5: Solve for x
    x = 15,821,631,311.98/143,542.76
  6. Step 6: Final answer
    x = 110,222.43

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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.