Home / 209,736.90-289,441.32-114,243.36

Finding the Fourth Proportional to 209,736.90, 289,441.32 and 114,243.36

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Solution

The fourth proportional to 209,736.90, 289,441.32 and 114,243.36 is: 157,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,736.90 : 289,441.32 = 114,243.36 : x
  2. Step 2: Convert to fraction form
    209,736.90/289,441.32 = 114,243.36/x
  3. Step 3: Cross multiply
    209,736.90x = 289,441.32 × 114,243.36
  4. Step 4: Simplify right side
    209,736.90x = 33,066,748,919.64
  5. Step 5: Solve for x
    x = 33,066,748,919.64/209,736.90
  6. Step 6: Final answer
    x = 157,658.23

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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.