Home / 209,449.46-289,043.21-113,956.23

Finding the Fourth Proportional to 209,449.46, 289,043.21 and 113,956.23

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Solution

The fourth proportional to 209,449.46, 289,043.21 and 113,956.23 is: 157,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,449.46 : 289,043.21 = 113,956.23 : x
  2. Step 2: Convert to fraction form
    209,449.46/289,043.21 = 113,956.23/x
  3. Step 3: Cross multiply
    209,449.46x = 289,043.21 × 113,956.23
  4. Step 4: Simplify right side
    209,449.46x = 32,938,273,948.92
  5. Step 5: Solve for x
    x = 32,938,273,948.92/209,449.46
  6. Step 6: Final answer
    x = 157,261.21

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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.