Home / 143,611.28-198,178.92-79,946.96

Finding the Fourth Proportional to 143,611.28, 198,178.92 and 79,946.96

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Solution

The fourth proportional to 143,611.28, 198,178.92 and 79,946.96 is: 110,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,611.28 : 198,178.92 = 79,946.96 : x
  2. Step 2: Convert to fraction form
    143,611.28/198,178.92 = 79,946.96/x
  3. Step 3: Cross multiply
    143,611.28x = 198,178.92 × 79,946.96
  4. Step 4: Simplify right side
    143,611.28x = 15,843,802,190.08
  5. Step 5: Solve for x
    x = 15,843,802,190.08/143,611.28
  6. Step 6: Final answer
    x = 110,324.22

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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.