Home / 113,788.26-170,544.15-80,518.05

Finding the Fourth Proportional to 113,788.26, 170,544.15 and 80,518.05

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Solution

The fourth proportional to 113,788.26, 170,544.15 and 80,518.05 is: 120,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,788.26 : 170,544.15 = 80,518.05 : x
  2. Step 2: Convert to fraction form
    113,788.26/170,544.15 = 80,518.05/x
  3. Step 3: Cross multiply
    113,788.26x = 170,544.15 × 80,518.05
  4. Step 4: Simplify right side
    113,788.26x = 13,731,882,396.91
  5. Step 5: Solve for x
    x = 13,731,882,396.91/113,788.26
  6. Step 6: Final answer
    x = 120,679.25

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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.