Home / 209,453.05-289,036.57-113,960.12

Finding the Fourth Proportional to 209,453.05, 289,036.57 and 113,960.12

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Solution

The fourth proportional to 209,453.05, 289,036.57 and 113,960.12 is: 157,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,453.05 : 289,036.57 = 113,960.12 : x
  2. Step 2: Convert to fraction form
    209,453.05/289,036.57 = 113,960.12/x
  3. Step 3: Cross multiply
    209,453.05x = 289,036.57 × 113,960.12
  4. Step 4: Simplify right side
    209,453.05x = 32,938,642,201.59
  5. Step 5: Solve for x
    x = 32,938,642,201.59/209,453.05
  6. Step 6: Final answer
    x = 157,260.27

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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.