Home / 143,846.40-198,508.80-80,183.68

Finding the Fourth Proportional to 143,846.40, 198,508.80 and 80,183.68

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Solution

The fourth proportional to 143,846.40, 198,508.80 and 80,183.68 is: 110,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,846.40 : 198,508.80 = 80,183.68 : x
  2. Step 2: Convert to fraction form
    143,846.40/198,508.80 = 80,183.68/x
  3. Step 3: Cross multiply
    143,846.40x = 198,508.80 × 80,183.68
  4. Step 4: Simplify right side
    143,846.40x = 15,917,166,096.38
  5. Step 5: Solve for x
    x = 15,917,166,096.38/143,846.40
  6. Step 6: Final answer
    x = 110,653.91

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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.