Home / 193,000.20-289,370.70-103,057.80

Finding the Fourth Proportional to 193,000.20, 289,370.70 and 103,057.80

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Solution

The fourth proportional to 193,000.20, 289,370.70 and 103,057.80 is: 154,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,000.20 : 289,370.70 = 103,057.80 : x
  2. Step 2: Convert to fraction form
    193,000.20/289,370.70 = 103,057.80/x
  3. Step 3: Cross multiply
    193,000.20x = 289,370.70 × 103,057.80
  4. Step 4: Simplify right side
    193,000.20x = 29,821,907,726.46
  5. Step 5: Solve for x
    x = 29,821,907,726.46/193,000.20
  6. Step 6: Final answer
    x = 154,517.50

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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.