Home / 190,601.48-263,030.21-105,718.54

Finding the Fourth Proportional to 190,601.48, 263,030.21 and 105,718.54

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Solution

The fourth proportional to 190,601.48, 263,030.21 and 105,718.54 is: 145,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,601.48 : 263,030.21 = 105,718.54 : x
  2. Step 2: Convert to fraction form
    190,601.48/263,030.21 = 105,718.54/x
  3. Step 3: Cross multiply
    190,601.48x = 263,030.21 × 105,718.54
  4. Step 4: Simplify right side
    190,601.48x = 27,807,169,777.09
  5. Step 5: Solve for x
    x = 27,807,169,777.09/190,601.48
  6. Step 6: Final answer
    x = 145,891.68

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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.