Home / 189,956.32-262,140.96-105,074.56

Finding the Fourth Proportional to 189,956.32, 262,140.96 and 105,074.56

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Solution

The fourth proportional to 189,956.32, 262,140.96 and 105,074.56 is: 145,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,956.32 : 262,140.96 = 105,074.56 : x
  2. Step 2: Convert to fraction form
    189,956.32/262,140.96 = 105,074.56/x
  3. Step 3: Cross multiply
    189,956.32x = 262,140.96 × 105,074.56
  4. Step 4: Simplify right side
    189,956.32x = 27,544,346,029.98
  5. Step 5: Solve for x
    x = 27,544,346,029.98/189,956.32
  6. Step 6: Final answer
    x = 145,003.58

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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.