Home / 209,546.37-289,180.23-129,020.34

Finding the Fourth Proportional to 209,546.37, 289,180.23 and 129,020.34

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Solution

The fourth proportional to 209,546.37, 289,180.23 and 129,020.34 is: 178,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,546.37 : 289,180.23 = 129,020.34 : x
  2. Step 2: Convert to fraction form
    209,546.37/289,180.23 = 129,020.34/x
  3. Step 3: Cross multiply
    209,546.37x = 289,180.23 × 129,020.34
  4. Step 4: Simplify right side
    209,546.37x = 37,310,131,595.88
  5. Step 5: Solve for x
    x = 37,310,131,595.88/209,546.37
  6. Step 6: Final answer
    x = 178,051.91

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1.5x scale

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.