Home / 190,873.40-263,403.78-105,990.68

Finding the Fourth Proportional to 190,873.40, 263,403.78 and 105,990.68

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Solution

The fourth proportional to 190,873.40, 263,403.78 and 105,990.68 is: 146,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,873.40 : 263,403.78 = 105,990.68 : x
  2. Step 2: Convert to fraction form
    190,873.40/263,403.78 = 105,990.68/x
  3. Step 3: Cross multiply
    190,873.40x = 263,403.78 × 105,990.68
  4. Step 4: Simplify right side
    190,873.40x = 27,918,345,756.77
  5. Step 5: Solve for x
    x = 27,918,345,756.77/190,873.40
  6. Step 6: Final answer
    x = 146,266.30

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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.