Home / 196,638.85-271,384.65-111,768.67

Finding the Fourth Proportional to 196,638.85, 271,384.65 and 111,768.67

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Solution

The fourth proportional to 196,638.85, 271,384.65 and 111,768.67 is: 154,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,638.85 : 271,384.65 = 111,768.67 : x
  2. Step 2: Convert to fraction form
    196,638.85/271,384.65 = 111,768.67/x
  3. Step 3: Cross multiply
    196,638.85x = 271,384.65 × 111,768.67
  4. Step 4: Simplify right side
    196,638.85x = 30,332,301,388.92
  5. Step 5: Solve for x
    x = 30,332,301,388.92/196,638.85
  6. Step 6: Final answer
    x = 154,253.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.