Home / 143,648.42-198,232.94-79,116.41

Finding the Fourth Proportional to 143,648.42, 198,232.94 and 79,116.41

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Solution

The fourth proportional to 143,648.42, 198,232.94 and 79,116.41 is: 109,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,648.42 : 198,232.94 = 79,116.41 : x
  2. Step 2: Convert to fraction form
    143,648.42/198,232.94 = 79,116.41/x
  3. Step 3: Cross multiply
    143,648.42x = 198,232.94 × 79,116.41
  4. Step 4: Simplify right side
    143,648.42x = 15,683,479,249.92
  5. Step 5: Solve for x
    x = 15,683,479,249.92/143,648.42
  6. Step 6: Final answer
    x = 109,179.62

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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.