Home / 196,659.75-271,390.50-111,782.28

Finding the Fourth Proportional to 196,659.75, 271,390.50 and 111,782.28

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Solution

The fourth proportional to 196,659.75, 271,390.50 and 111,782.28 is: 154,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,659.75 : 271,390.50 = 111,782.28 : x
  2. Step 2: Convert to fraction form
    196,659.75/271,390.50 = 111,782.28/x
  3. Step 3: Cross multiply
    196,659.75x = 271,390.50 × 111,782.28
  4. Step 4: Simplify right side
    196,659.75x = 30,336,648,860.34
  5. Step 5: Solve for x
    x = 30,336,648,860.34/196,659.75
  6. Step 6: Final answer
    x = 154,259.57

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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.