Home / 193,282.85-289,919.93-66,915.45

Finding the Fourth Proportional to 193,282.85, 289,919.93 and 66,915.45

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Solution

The fourth proportional to 193,282.85, 289,919.93 and 66,915.45 is: 100,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,282.85 : 289,919.93 = 66,915.45 : x
  2. Step 2: Convert to fraction form
    193,282.85/289,919.93 = 66,915.45/x
  3. Step 3: Cross multiply
    193,282.85x = 289,919.93 × 66,915.45
  4. Step 4: Simplify right side
    193,282.85x = 19,400,122,245.34
  5. Step 5: Solve for x
    x = 19,400,122,245.34/193,282.85
  6. Step 6: Final answer
    x = 100,371.67

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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.