Home / 209,121.75-288,590.58-113,630.04

Finding the Fourth Proportional to 209,121.75, 288,590.58 and 113,630.04

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Solution

The fourth proportional to 209,121.75, 288,590.58 and 113,630.04 is: 156,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,121.75 : 288,590.58 = 113,630.04 : x
  2. Step 2: Convert to fraction form
    209,121.75/288,590.58 = 113,630.04/x
  3. Step 3: Cross multiply
    209,121.75x = 288,590.58 × 113,630.04
  4. Step 4: Simplify right side
    209,121.75x = 32,792,559,149.02
  5. Step 5: Solve for x
    x = 32,792,559,149.02/209,121.75
  6. Step 6: Final answer
    x = 156,810.85

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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.