Home / 190,198.08-262,470.15-105,313.32

Finding the Fourth Proportional to 190,198.08, 262,470.15 and 105,313.32

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Solution

The fourth proportional to 190,198.08, 262,470.15 and 105,313.32 is: 145,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.08 : 262,470.15 = 105,313.32 : x
  2. Step 2: Convert to fraction form
    190,198.08/262,470.15 = 105,313.32/x
  3. Step 3: Cross multiply
    190,198.08x = 262,470.15 × 105,313.32
  4. Step 4: Simplify right side
    190,198.08x = 27,641,603,027.01
  5. Step 5: Solve for x
    x = 27,641,603,027.01/190,198.08
  6. Step 6: Final answer
    x = 145,330.61

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1.5x scale

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.