Home / 203,586.20-305,312.43-68,614.05

Finding the Fourth Proportional to 203,586.20, 305,312.43 and 68,614.05

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Solution

The fourth proportional to 203,586.20, 305,312.43 and 68,614.05 is: 102,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,586.20 : 305,312.43 = 68,614.05 : x
  2. Step 2: Convert to fraction form
    203,586.20/305,312.43 = 68,614.05/x
  3. Step 3: Cross multiply
    203,586.20x = 305,312.43 × 68,614.05
  4. Step 4: Simplify right side
    203,586.20x = 20,948,722,337.64
  5. Step 5: Solve for x
    x = 20,948,722,337.64/203,586.20
  6. Step 6: Final answer
    x = 102,898.54

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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.