Home / 190,686.75-263,128.56-114,203.89

Finding the Fourth Proportional to 190,686.75, 263,128.56 and 114,203.89

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Solution

The fourth proportional to 190,686.75, 263,128.56 and 114,203.89 is: 157,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,686.75 : 263,128.56 = 114,203.89 : x
  2. Step 2: Convert to fraction form
    190,686.75/263,128.56 = 114,203.89/x
  3. Step 3: Cross multiply
    190,686.75x = 263,128.56 × 114,203.89
  4. Step 4: Simplify right side
    190,686.75x = 30,050,305,451.01
  5. Step 5: Solve for x
    x = 30,050,305,451.01/190,686.75
  6. Step 6: Final answer
    x = 157,589.89

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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.