Home / 212,370.10-318,610.70-79,251.54

Finding the Fourth Proportional to 212,370.10, 318,610.70 and 79,251.54

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Solution

The fourth proportional to 212,370.10, 318,610.70 and 79,251.54 is: 118,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,370.10 : 318,610.70 = 79,251.54 : x
  2. Step 2: Convert to fraction form
    212,370.10/318,610.70 = 79,251.54/x
  3. Step 3: Cross multiply
    212,370.10x = 318,610.70 × 79,251.54
  4. Step 4: Simplify right side
    212,370.10x = 25,250,388,635.48
  5. Step 5: Solve for x
    x = 25,250,388,635.48/212,370.10
  6. Step 6: Final answer
    x = 118,898.04

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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.