Home / 190,111.54-262,350.75-105,226.78

Finding the Fourth Proportional to 190,111.54, 262,350.75 and 105,226.78

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Solution

The fourth proportional to 190,111.54, 262,350.75 and 105,226.78 is: 145,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,111.54 : 262,350.75 = 105,226.78 : x
  2. Step 2: Convert to fraction form
    190,111.54/262,350.75 = 105,226.78/x
  3. Step 3: Cross multiply
    190,111.54x = 262,350.75 × 105,226.78
  4. Step 4: Simplify right side
    190,111.54x = 27,606,324,653.09
  5. Step 5: Solve for x
    x = 27,606,324,653.09/190,111.54
  6. Step 6: Final answer
    x = 145,211.20

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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.