Home / 144,022.85-198,731.67-80,348.30

Finding the Fourth Proportional to 144,022.85, 198,731.67 and 80,348.30

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Solution

The fourth proportional to 144,022.85, 198,731.67 and 80,348.30 is: 110,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,022.85 : 198,731.67 = 80,348.30 : x
  2. Step 2: Convert to fraction form
    144,022.85/198,731.67 = 80,348.30/x
  3. Step 3: Cross multiply
    144,022.85x = 198,731.67 × 80,348.30
  4. Step 4: Simplify right side
    144,022.85x = 15,967,751,840.66
  5. Step 5: Solve for x
    x = 15,967,751,840.66/144,022.85
  6. Step 6: Final answer
    x = 110,869.57

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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.