Home / 209,516.12-289,133.15-114,022.69

Finding the Fourth Proportional to 209,516.12, 289,133.15 and 114,022.69

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Solution

The fourth proportional to 209,516.12, 289,133.15 and 114,022.69 is: 157,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516.12 : 289,133.15 = 114,022.69 : x
  2. Step 2: Convert to fraction form
    209,516.12/289,133.15 = 114,022.69/x
  3. Step 3: Cross multiply
    209,516.12x = 289,133.15 × 114,022.69
  4. Step 4: Simplify right side
    209,516.12x = 32,967,738,238.23
  5. Step 5: Solve for x
    x = 32,967,738,238.23/209,516.12
  6. Step 6: Final answer
    x = 157,351.80

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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.