Home / 190,779.18-263,262.10-105,889.56

Finding the Fourth Proportional to 190,779.18, 263,262.10 and 105,889.56

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Solution

The fourth proportional to 190,779.18, 263,262.10 and 105,889.56 is: 146,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,779.18 : 263,262.10 = 105,889.56 : x
  2. Step 2: Convert to fraction form
    190,779.18/263,262.10 = 105,889.56/x
  3. Step 3: Cross multiply
    190,779.18x = 263,262.10 × 105,889.56
  4. Step 4: Simplify right side
    190,779.18x = 27,876,707,933.68
  5. Step 5: Solve for x
    x = 27,876,707,933.68/190,779.18
  6. Step 6: Final answer
    x = 146,120.28

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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.