Home / 190,789.68-263,290.80-119,211.28

Finding the Fourth Proportional to 190,789.68, 263,290.80 and 119,211.28

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Solution

The fourth proportional to 190,789.68, 263,290.80 and 119,211.28 is: 164,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,789.68 : 263,290.80 = 119,211.28 : x
  2. Step 2: Convert to fraction form
    190,789.68/263,290.80 = 119,211.28/x
  3. Step 3: Cross multiply
    190,789.68x = 263,290.80 × 119,211.28
  4. Step 4: Simplify right side
    190,789.68x = 31,387,233,280.22
  5. Step 5: Solve for x
    x = 31,387,233,280.22/190,789.68
  6. Step 6: Final answer
    x = 164,512.22

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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.