Home / 143,329.46-197,789.61-78,798.23

Finding the Fourth Proportional to 143,329.46, 197,789.61 and 78,798.23

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Solution

The fourth proportional to 143,329.46, 197,789.61 and 78,798.23 is: 108,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,329.46 : 197,789.61 = 78,798.23 : x
  2. Step 2: Convert to fraction form
    143,329.46/197,789.61 = 78,798.23/x
  3. Step 3: Cross multiply
    143,329.46x = 197,789.61 × 78,798.23
  4. Step 4: Simplify right side
    143,329.46x = 15,585,470,191.44
  5. Step 5: Solve for x
    x = 15,585,470,191.44/143,329.46
  6. Step 6: Final answer
    x = 108,738.78

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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.