Home / 174,118.11-261,089.69-80,689.47

Finding the Fourth Proportional to 174,118.11, 261,089.69 and 80,689.47

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Solution

The fourth proportional to 174,118.11, 261,089.69 and 80,689.47 is: 120,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,118.11 : 261,089.69 = 80,689.47 : x
  2. Step 2: Convert to fraction form
    174,118.11/261,089.69 = 80,689.47/x
  3. Step 3: Cross multiply
    174,118.11x = 261,089.69 × 80,689.47
  4. Step 4: Simplify right side
    174,118.11x = 21,067,188,305.12
  5. Step 5: Solve for x
    x = 21,067,188,305.12/174,118.11
  6. Step 6: Final answer
    x = 120,993.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.