Home / 143,313.92-197,751.12-79,651.52

Finding the Fourth Proportional to 143,313.92, 197,751.12 and 79,651.52

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Solution

The fourth proportional to 143,313.92, 197,751.12 and 79,651.52 is: 109,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.92 : 197,751.12 = 79,651.52 : x
  2. Step 2: Convert to fraction form
    143,313.92/197,751.12 = 79,651.52/x
  3. Step 3: Cross multiply
    143,313.92x = 197,751.12 × 79,651.52
  4. Step 4: Simplify right side
    143,313.92x = 15,751,177,289.70
  5. Step 5: Solve for x
    x = 15,751,177,289.70/143,313.92
  6. Step 6: Final answer
    x = 109,906.82

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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.