Home / 209,311.99-288,847.25-113,817.85

Finding the Fourth Proportional to 209,311.99, 288,847.25 and 113,817.85

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Solution

The fourth proportional to 209,311.99, 288,847.25 and 113,817.85 is: 157,066.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,311.99 : 288,847.25 = 113,817.85 : x
  2. Step 2: Convert to fraction form
    209,311.99/288,847.25 = 113,817.85/x
  3. Step 3: Cross multiply
    209,311.99x = 288,847.25 × 113,817.85
  4. Step 4: Simplify right side
    209,311.99x = 32,875,972,109.02
  5. Step 5: Solve for x
    x = 32,875,972,109.02/209,311.99
  6. Step 6: Final answer
    x = 157,066.84

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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.