Home / 212,212.28-318,236.60-93,818.64

Finding the Fourth Proportional to 212,212.28, 318,236.60 and 93,818.64

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Solution

The fourth proportional to 212,212.28, 318,236.60 and 93,818.64 is: 140,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,212.28 : 318,236.60 = 93,818.64 : x
  2. Step 2: Convert to fraction form
    212,212.28/318,236.60 = 93,818.64/x
  3. Step 3: Cross multiply
    212,212.28x = 318,236.60 × 93,818.64
  4. Step 4: Simplify right side
    212,212.28x = 29,856,525,010.22
  5. Step 5: Solve for x
    x = 29,856,525,010.22/212,212.28
  6. Step 6: Final answer
    x = 140,691.79

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1.5x scale

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.