Home / 212,100.24-318,152.88-54,324.48

Finding the Fourth Proportional to 212,100.24, 318,152.88 and 54,324.48

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Solution

The fourth proportional to 212,100.24, 318,152.88 and 54,324.48 is: 81,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,100.24 : 318,152.88 = 54,324.48 : x
  2. Step 2: Convert to fraction form
    212,100.24/318,152.88 = 54,324.48/x
  3. Step 3: Cross multiply
    212,100.24x = 318,152.88 × 54,324.48
  4. Step 4: Simplify right side
    212,100.24x = 17,283,489,766.50
  5. Step 5: Solve for x
    x = 17,283,489,766.50/212,100.24
  6. Step 6: Final answer
    x = 81,487.37

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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.