Home / 189,578.67-261,619.83-103,535.43

Finding the Fourth Proportional to 189,578.67, 261,619.83 and 103,535.43

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Solution

The fourth proportional to 189,578.67, 261,619.83 and 103,535.43 is: 142,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,578.67 : 261,619.83 = 103,535.43 : x
  2. Step 2: Convert to fraction form
    189,578.67/261,619.83 = 103,535.43/x
  3. Step 3: Cross multiply
    189,578.67x = 261,619.83 × 103,535.43
  4. Step 4: Simplify right side
    189,578.67x = 27,086,921,595.58
  5. Step 5: Solve for x
    x = 27,086,921,595.58/189,578.67
  6. Step 6: Final answer
    x = 142,879.58

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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.