Home / 212,023.88-318,050.54-71,735.08

Finding the Fourth Proportional to 212,023.88, 318,050.54 and 71,735.08

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Solution

The fourth proportional to 212,023.88, 318,050.54 and 71,735.08 is: 107,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,023.88 : 318,050.54 = 71,735.08 : x
  2. Step 2: Convert to fraction form
    212,023.88/318,050.54 = 71,735.08/x
  3. Step 3: Cross multiply
    212,023.88x = 318,050.54 × 71,735.08
  4. Step 4: Simplify right side
    212,023.88x = 22,815,380,930.94
  5. Step 5: Solve for x
    x = 22,815,380,930.94/212,023.88
  6. Step 6: Final answer
    x = 107,607.60

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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.