Home / 104,919.54-144,790.62-57,172.86

Finding the Fourth Proportional to 104,919.54, 144,790.62 and 57,172.86

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Solution

The fourth proportional to 104,919.54, 144,790.62 and 57,172.86 is: 78,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,919.54 : 144,790.62 = 57,172.86 : x
  2. Step 2: Convert to fraction form
    104,919.54/144,790.62 = 57,172.86/x
  3. Step 3: Cross multiply
    104,919.54x = 144,790.62 × 57,172.86
  4. Step 4: Simplify right side
    104,919.54x = 8,278,093,846.57
  5. Step 5: Solve for x
    x = 8,278,093,846.57/104,919.54
  6. Step 6: Final answer
    x = 78,899.45

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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.