Home / 143,861.14-198,537.06-80,198.74

Finding the Fourth Proportional to 143,861.14, 198,537.06 and 80,198.74

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Solution

The fourth proportional to 143,861.14, 198,537.06 and 80,198.74 is: 110,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,861.14 : 198,537.06 = 80,198.74 : x
  2. Step 2: Convert to fraction form
    143,861.14/198,537.06 = 80,198.74/x
  3. Step 3: Cross multiply
    143,861.14x = 198,537.06 × 80,198.74
  4. Step 4: Simplify right side
    143,861.14x = 15,922,422,055.30
  5. Step 5: Solve for x
    x = 15,922,422,055.30/143,861.14
  6. Step 6: Final answer
    x = 110,679.10

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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.