Home / 190,198.52-262,470.75-105,313.76

Finding the Fourth Proportional to 190,198.52, 262,470.75 and 105,313.76

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Solution

The fourth proportional to 190,198.52, 262,470.75 and 105,313.76 is: 145,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.52 : 262,470.75 = 105,313.76 : x
  2. Step 2: Convert to fraction form
    190,198.52/262,470.75 = 105,313.76/x
  3. Step 3: Cross multiply
    190,198.52x = 262,470.75 × 105,313.76
  4. Step 4: Simplify right side
    190,198.52x = 27,641,781,572.52
  5. Step 5: Solve for x
    x = 27,641,781,572.52/190,198.52
  6. Step 6: Final answer
    x = 145,331.21

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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.