Home / 203,024.20-280,191.78-112,401.64

Finding the Fourth Proportional to 203,024.20, 280,191.78 and 112,401.64

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Solution

The fourth proportional to 203,024.20, 280,191.78 and 112,401.64 is: 155,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,024.20 : 280,191.78 = 112,401.64 : x
  2. Step 2: Convert to fraction form
    203,024.20/280,191.78 = 112,401.64/x
  3. Step 3: Cross multiply
    203,024.20x = 280,191.78 × 112,401.64
  4. Step 4: Simplify right side
    203,024.20x = 31,494,015,586.52
  5. Step 5: Solve for x
    x = 31,494,015,586.52/203,024.20
  6. Step 6: Final answer
    x = 155,124.44

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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.