Home / 193,315.80-289,973.70-137,328.60

Finding the Fourth Proportional to 193,315.80, 289,973.70 and 137,328.60

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Solution

The fourth proportional to 193,315.80, 289,973.70 and 137,328.60 is: 205,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,315.80 : 289,973.70 = 137,328.60 : x
  2. Step 2: Convert to fraction form
    193,315.80/289,973.70 = 137,328.60/x
  3. Step 3: Cross multiply
    193,315.80x = 289,973.70 × 137,328.60
  4. Step 4: Simplify right side
    193,315.80x = 39,821,682,257.82
  5. Step 5: Solve for x
    x = 39,821,682,257.82/193,315.80
  6. Step 6: Final answer
    x = 205,992.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.