Home / 143,834.94-198,484.02-80,170.56

Finding the Fourth Proportional to 143,834.94, 198,484.02 and 80,170.56

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Solution

The fourth proportional to 143,834.94, 198,484.02 and 80,170.56 is: 110,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,834.94 : 198,484.02 = 80,170.56 : x
  2. Step 2: Convert to fraction form
    143,834.94/198,484.02 = 80,170.56/x
  3. Step 3: Cross multiply
    143,834.94x = 198,484.02 × 80,170.56
  4. Step 4: Simplify right side
    143,834.94x = 15,912,575,034.45
  5. Step 5: Solve for x
    x = 15,912,575,034.45/143,834.94
  6. Step 6: Final answer
    x = 110,630.80

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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.