Home / 189,767.22-261,879.02-109,193.15

Finding the Fourth Proportional to 189,767.22, 261,879.02 and 109,193.15

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Solution

The fourth proportional to 189,767.22, 261,879.02 and 109,193.15 is: 150,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,767.22 : 261,879.02 = 109,193.15 : x
  2. Step 2: Convert to fraction form
    189,767.22/261,879.02 = 109,193.15/x
  3. Step 3: Cross multiply
    189,767.22x = 261,879.02 × 109,193.15
  4. Step 4: Simplify right side
    189,767.22x = 28,595,393,257.35
  5. Step 5: Solve for x
    x = 28,595,393,257.35/189,767.22
  6. Step 6: Final answer
    x = 150,686.68

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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.