Home / 196,290.30-270,881.91-111,408.78

Finding the Fourth Proportional to 196,290.30, 270,881.91 and 111,408.78

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Solution

The fourth proportional to 196,290.30, 270,881.91 and 111,408.78 is: 153,744.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,290.30 : 270,881.91 = 111,408.78 : x
  2. Step 2: Convert to fraction form
    196,290.30/270,881.91 = 111,408.78/x
  3. Step 3: Cross multiply
    196,290.30x = 270,881.91 × 111,408.78
  4. Step 4: Simplify right side
    196,290.30x = 30,178,623,117.17
  5. Step 5: Solve for x
    x = 30,178,623,117.17/196,290.30
  6. Step 6: Final answer
    x = 153,744.85

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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.