Home / 190,863.39-263,403.34-105,981.06

Finding the Fourth Proportional to 190,863.39, 263,403.34 and 105,981.06

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Solution

The fourth proportional to 190,863.39, 263,403.34 and 105,981.06 is: 146,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,863.39 : 263,403.34 = 105,981.06 : x
  2. Step 2: Convert to fraction form
    190,863.39/263,403.34 = 105,981.06/x
  3. Step 3: Cross multiply
    190,863.39x = 263,403.34 × 105,981.06
  4. Step 4: Simplify right side
    190,863.39x = 27,915,765,180.74
  5. Step 5: Solve for x
    x = 27,915,765,180.74/190,863.39
  6. Step 6: Final answer
    x = 146,260.45

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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.