Home / 189,917.32-262,091.16-105,039.76

Finding the Fourth Proportional to 189,917.32, 262,091.16 and 105,039.76

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Solution

The fourth proportional to 189,917.32, 262,091.16 and 105,039.76 is: 144,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,917.32 : 262,091.16 = 105,039.76 : x
  2. Step 2: Convert to fraction form
    189,917.32/262,091.16 = 105,039.76/x
  3. Step 3: Cross multiply
    189,917.32x = 262,091.16 × 105,039.76
  4. Step 4: Simplify right side
    189,917.32x = 27,529,992,544.52
  5. Step 5: Solve for x
    x = 27,529,992,544.52/189,917.32
  6. Step 6: Final answer
    x = 144,957.78

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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.