Home / 143,890.41-198,568.98-80,232.24

Finding the Fourth Proportional to 143,890.41, 198,568.98 and 80,232.24

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Solution

The fourth proportional to 143,890.41, 198,568.98 and 80,232.24 is: 110,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890.41 : 198,568.98 = 80,232.24 : x
  2. Step 2: Convert to fraction form
    143,890.41/198,568.98 = 80,232.24/x
  3. Step 3: Cross multiply
    143,890.41x = 198,568.98 × 80,232.24
  4. Step 4: Simplify right side
    143,890.41x = 15,931,634,059.92
  5. Step 5: Solve for x
    x = 15,931,634,059.92/143,890.41
  6. Step 6: Final answer
    x = 110,720.61

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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.