Home / 190,807.45-263,303.96-105,919.04

Finding the Fourth Proportional to 190,807.45, 263,303.96 and 105,919.04

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Solution

The fourth proportional to 190,807.45, 263,303.96 and 105,919.04 is: 146,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,807.45 : 263,303.96 = 105,919.04 : x
  2. Step 2: Convert to fraction form
    190,807.45/263,303.96 = 105,919.04/x
  3. Step 3: Cross multiply
    190,807.45x = 263,303.96 × 105,919.04
  4. Step 4: Simplify right side
    190,807.45x = 27,888,902,800.06
  5. Step 5: Solve for x
    x = 27,888,902,800.06/190,807.45
  6. Step 6: Final answer
    x = 146,162.55

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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.