Home / 209,228.92-288,736.12-113,735.62

Finding the Fourth Proportional to 209,228.92, 288,736.12 and 113,735.62

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Solution

The fourth proportional to 209,228.92, 288,736.12 and 113,735.62 is: 156,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,228.92 : 288,736.12 = 113,735.62 : x
  2. Step 2: Convert to fraction form
    209,228.92/288,736.12 = 113,735.62/x
  3. Step 3: Cross multiply
    209,228.92x = 288,736.12 × 113,735.62
  4. Step 4: Simplify right side
    209,228.92x = 32,839,581,624.59
  5. Step 5: Solve for x
    x = 32,839,581,624.59/209,228.92
  6. Step 6: Final answer
    x = 156,955.27

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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.