Home / 209,809.06-289,539.82-114,315.72

Finding the Fourth Proportional to 209,809.06, 289,539.82 and 114,315.72

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Solution

The fourth proportional to 209,809.06, 289,539.82 and 114,315.72 is: 157,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,809.06 : 289,539.82 = 114,315.72 : x
  2. Step 2: Convert to fraction form
    209,809.06/289,539.82 = 114,315.72/x
  3. Step 3: Cross multiply
    209,809.06x = 289,539.82 × 114,315.72
  4. Step 4: Simplify right side
    209,809.06x = 33,098,952,991.97
  5. Step 5: Solve for x
    x = 33,098,952,991.97/209,809.06
  6. Step 6: Final answer
    x = 157,757.50

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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.