Home / 143,986.01-198,700.09-80,323.85

Finding the Fourth Proportional to 143,986.01, 198,700.09 and 80,323.85

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Solution

The fourth proportional to 143,986.01, 198,700.09 and 80,323.85 is: 110,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,986.01 : 198,700.09 = 80,323.85 : x
  2. Step 2: Convert to fraction form
    143,986.01/198,700.09 = 80,323.85/x
  3. Step 3: Cross multiply
    143,986.01x = 198,700.09 × 80,323.85
  4. Step 4: Simplify right side
    143,986.01x = 15,960,356,520.09
  5. Step 5: Solve for x
    x = 15,960,356,520.09/143,986.01
  6. Step 6: Final answer
    x = 110,846.58

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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.