Home / 209,778.72-289,493.84-114,285.12

Finding the Fourth Proportional to 209,778.72, 289,493.84 and 114,285.12

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Solution

The fourth proportional to 209,778.72, 289,493.84 and 114,285.12 is: 157,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,778.72 : 289,493.84 = 114,285.12 : x
  2. Step 2: Convert to fraction form
    209,778.72/289,493.84 = 114,285.12/x
  3. Step 3: Cross multiply
    209,778.72x = 289,493.84 × 114,285.12
  4. Step 4: Simplify right side
    209,778.72x = 33,084,838,243.66
  5. Step 5: Solve for x
    x = 33,084,838,243.66/209,778.72
  6. Step 6: Final answer
    x = 157,713.03

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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.