Home / 145,205.14-200,380.49-80,674.67

Finding the Fourth Proportional to 145,205.14, 200,380.49 and 80,674.67

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Solution

The fourth proportional to 145,205.14, 200,380.49 and 80,674.67 is: 111,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,205.14 : 200,380.49 = 80,674.67 : x
  2. Step 2: Convert to fraction form
    145,205.14/200,380.49 = 80,674.67/x
  3. Step 3: Cross multiply
    145,205.14x = 200,380.49 × 80,674.67
  4. Step 4: Simplify right side
    145,205.14x = 16,165,629,553.87
  5. Step 5: Solve for x
    x = 16,165,629,553.87/145,205.14
  6. Step 6: Final answer
    x = 111,329.59

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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.