Home / 209,474.58-289,073.58-113,981.64

Finding the Fourth Proportional to 209,474.58, 289,073.58 and 113,981.64

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Solution

The fourth proportional to 209,474.58, 289,073.58 and 113,981.64 is: 157,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,474.58 : 289,073.58 = 113,981.64 : x
  2. Step 2: Convert to fraction form
    209,474.58/289,073.58 = 113,981.64/x
  3. Step 3: Cross multiply
    209,474.58x = 289,073.58 × 113,981.64
  4. Step 4: Simplify right side
    209,474.58x = 32,949,080,729.07
  5. Step 5: Solve for x
    x = 32,949,080,729.07/209,474.58
  6. Step 6: Final answer
    x = 157,293.93

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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.