Home / 190,830.56-263,335.90-105,942.16

Finding the Fourth Proportional to 190,830.56, 263,335.90 and 105,942.16

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Solution

The fourth proportional to 190,830.56, 263,335.90 and 105,942.16 is: 146,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.56 : 263,335.90 = 105,942.16 : x
  2. Step 2: Convert to fraction form
    190,830.56/263,335.90 = 105,942.16/x
  3. Step 3: Cross multiply
    190,830.56x = 263,335.90 × 105,942.16
  4. Step 4: Simplify right side
    190,830.56x = 27,898,372,205.15
  5. Step 5: Solve for x
    x = 27,898,372,205.15/190,830.56
  6. Step 6: Final answer
    x = 146,194.47

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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.