Home / 209,721.45-289,415.63-114,228.23

Finding the Fourth Proportional to 209,721.45, 289,415.63 and 114,228.23

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Solution

The fourth proportional to 209,721.45, 289,415.63 and 114,228.23 is: 157,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,721.45 : 289,415.63 = 114,228.23 : x
  2. Step 2: Convert to fraction form
    209,721.45/289,415.63 = 114,228.23/x
  3. Step 3: Cross multiply
    209,721.45x = 289,415.63 × 114,228.23
  4. Step 4: Simplify right side
    209,721.45x = 33,059,433,987.73
  5. Step 5: Solve for x
    x = 33,059,433,987.73/209,721.45
  6. Step 6: Final answer
    x = 157,634.96

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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.