Home / 143,935.26-198,638.51-80,272.77

Finding the Fourth Proportional to 143,935.26, 198,638.51 and 80,272.77

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Solution

The fourth proportional to 143,935.26, 198,638.51 and 80,272.77 is: 110,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,935.26 : 198,638.51 = 80,272.77 : x
  2. Step 2: Convert to fraction form
    143,935.26/198,638.51 = 80,272.77/x
  3. Step 3: Cross multiply
    143,935.26x = 198,638.51 × 80,272.77
  4. Step 4: Simplify right side
    143,935.26x = 15,945,263,025.01
  5. Step 5: Solve for x
    x = 15,945,263,025.01/143,935.26
  6. Step 6: Final answer
    x = 110,780.80

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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.