Home / 209,705.73-289,397.18-114,212.34

Finding the Fourth Proportional to 209,705.73, 289,397.18 and 114,212.34

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Solution

The fourth proportional to 209,705.73, 289,397.18 and 114,212.34 is: 157,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,705.73 : 289,397.18 = 114,212.34 : x
  2. Step 2: Convert to fraction form
    209,705.73/289,397.18 = 114,212.34/x
  3. Step 3: Cross multiply
    209,705.73x = 289,397.18 × 114,212.34
  4. Step 4: Simplify right side
    209,705.73x = 33,052,728,546.14
  5. Step 5: Solve for x
    x = 33,052,728,546.14/209,705.73
  6. Step 6: Final answer
    x = 157,614.81

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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.