Home / 189,943.16-262,134.60-109,391.90

Finding the Fourth Proportional to 189,943.16, 262,134.60 and 109,391.90

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Solution

The fourth proportional to 189,943.16, 262,134.60 and 109,391.90 is: 150,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,943.16 : 262,134.60 = 109,391.90 : x
  2. Step 2: Convert to fraction form
    189,943.16/262,134.60 = 109,391.90/x
  3. Step 3: Cross multiply
    189,943.16x = 262,134.60 × 109,391.90
  4. Step 4: Simplify right side
    189,943.16x = 28,675,401,949.74
  5. Step 5: Solve for x
    x = 28,675,401,949.74/189,943.16
  6. Step 6: Final answer
    x = 150,968.33

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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.