Home / 199,109.64-274,771.18-109,685.64

Finding the Fourth Proportional to 199,109.64, 274,771.18 and 109,685.64

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Solution

The fourth proportional to 199,109.64, 274,771.18 and 109,685.64 is: 151,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,109.64 : 274,771.18 = 109,685.64 : x
  2. Step 2: Convert to fraction form
    199,109.64/274,771.18 = 109,685.64/x
  3. Step 3: Cross multiply
    199,109.64x = 274,771.18 × 109,685.64
  4. Step 4: Simplify right side
    199,109.64x = 30,138,451,083.79
  5. Step 5: Solve for x
    x = 30,138,451,083.79/199,109.64
  6. Step 6: Final answer
    x = 151,366.11

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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.