Home / 209,619.74-289,280.46-114,131.67

Finding the Fourth Proportional to 209,619.74, 289,280.46 and 114,131.67

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Solution

The fourth proportional to 209,619.74, 289,280.46 and 114,131.67 is: 157,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,619.74 : 289,280.46 = 114,131.67 : x
  2. Step 2: Convert to fraction form
    209,619.74/289,280.46 = 114,131.67/x
  3. Step 3: Cross multiply
    209,619.74x = 289,280.46 × 114,131.67
  4. Step 4: Simplify right side
    209,619.74x = 33,016,061,998.17
  5. Step 5: Solve for x
    x = 33,016,061,998.17/209,619.74
  6. Step 6: Final answer
    x = 157,504.55

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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.