Home / 193,623.24-289,809.90-100,000.20

Finding the Fourth Proportional to 193,623.24, 289,809.90 and 100,000.20

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Solution

The fourth proportional to 193,623.24, 289,809.90 and 100,000.20 is: 149,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,623.24 : 289,809.90 = 100,000.20 : x
  2. Step 2: Convert to fraction form
    193,623.24/289,809.90 = 100,000.20/x
  3. Step 3: Cross multiply
    193,623.24x = 289,809.90 × 100,000.20
  4. Step 4: Simplify right side
    193,623.24x = 28,981,047,961.98
  5. Step 5: Solve for x
    x = 28,981,047,961.98/193,623.24
  6. Step 6: Final answer
    x = 149,677.53

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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.