Home / 209,117.75-288,585.14-113,626.04

Finding the Fourth Proportional to 209,117.75, 288,585.14 and 113,626.04

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Solution

The fourth proportional to 209,117.75, 288,585.14 and 113,626.04 is: 156,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,117.75 : 288,585.14 = 113,626.04 : x
  2. Step 2: Convert to fraction form
    209,117.75/288,585.14 = 113,626.04/x
  3. Step 3: Cross multiply
    209,117.75x = 288,585.14 × 113,626.04
  4. Step 4: Simplify right side
    209,117.75x = 32,790,784,649.99
  5. Step 5: Solve for x
    x = 32,790,784,649.99/209,117.75
  6. Step 6: Final answer
    x = 156,805.37

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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.