Home / 209,728.70-289,427.02-114,234.56

Finding the Fourth Proportional to 209,728.70, 289,427.02 and 114,234.56

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Solution

The fourth proportional to 209,728.70, 289,427.02 and 114,234.56 is: 157,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,728.70 : 289,427.02 = 114,234.56 : x
  2. Step 2: Convert to fraction form
    209,728.70/289,427.02 = 114,234.56/x
  3. Step 3: Cross multiply
    209,728.70x = 289,427.02 × 114,234.56
  4. Step 4: Simplify right side
    209,728.70x = 33,062,568,281.81
  5. Step 5: Solve for x
    x = 33,062,568,281.81/209,728.70
  6. Step 6: Final answer
    x = 157,644.46

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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.