Home / 212,582.22-318,912.57-87,932.94

Finding the Fourth Proportional to 212,582.22, 318,912.57 and 87,932.94

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Solution

The fourth proportional to 212,582.22, 318,912.57 and 87,932.94 is: 131,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,582.22 : 318,912.57 = 87,932.94 : x
  2. Step 2: Convert to fraction form
    212,582.22/318,912.57 = 87,932.94/x
  3. Step 3: Cross multiply
    212,582.22x = 318,912.57 × 87,932.94
  4. Step 4: Simplify right side
    212,582.22x = 28,042,919,883.06
  5. Step 5: Solve for x
    x = 28,042,919,883.06/212,582.22
  6. Step 6: Final answer
    x = 131,915.64

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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.