Home / 193,315.20-289,972.80-100,003.20

Finding the Fourth Proportional to 193,315.20, 289,972.80 and 100,003.20

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Solution

The fourth proportional to 193,315.20, 289,972.80 and 100,003.20 is: 150,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,315.20 : 289,972.80 = 100,003.20 : x
  2. Step 2: Convert to fraction form
    193,315.20/289,972.80 = 100,003.20/x
  3. Step 3: Cross multiply
    193,315.20x = 289,972.80 × 100,003.20
  4. Step 4: Simplify right side
    193,315.20x = 28,998,207,912.96
  5. Step 5: Solve for x
    x = 28,998,207,912.96/193,315.20
  6. Step 6: Final answer
    x = 150,004.80

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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.