Home / 143,211.84-197,632.24-79,555.56

Finding the Fourth Proportional to 143,211.84, 197,632.24 and 79,555.56

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Solution

The fourth proportional to 143,211.84, 197,632.24 and 79,555.56 is: 109,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,211.84 : 197,632.24 = 79,555.56 : x
  2. Step 2: Convert to fraction form
    143,211.84/197,632.24 = 79,555.56/x
  3. Step 3: Cross multiply
    143,211.84x = 197,632.24 × 79,555.56
  4. Step 4: Simplify right side
    143,211.84x = 15,722,743,527.25
  5. Step 5: Solve for x
    x = 15,722,743,527.25/143,211.84
  6. Step 6: Final answer
    x = 109,786.62

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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.