Home / 129,834.09-194,749.11-66,617.73

Finding the Fourth Proportional to 129,834.09, 194,749.11 and 66,617.73

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Solution

The fourth proportional to 129,834.09, 194,749.11 and 66,617.73 is: 99,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,834.09 : 194,749.11 = 66,617.73 : x
  2. Step 2: Convert to fraction form
    129,834.09/194,749.11 = 66,617.73/x
  3. Step 3: Cross multiply
    129,834.09x = 194,749.11 × 66,617.73
  4. Step 4: Simplify right side
    129,834.09x = 12,973,743,627.72
  5. Step 5: Solve for x
    x = 12,973,743,627.72/129,834.09
  6. Step 6: Final answer
    x = 99,925.56

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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.