Home / 209,190.06-288,684.54-113,696.78

Finding the Fourth Proportional to 209,190.06, 288,684.54 and 113,696.78

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Solution

The fourth proportional to 209,190.06, 288,684.54 and 113,696.78 is: 156,902.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,190.06 : 288,684.54 = 113,696.78 : x
  2. Step 2: Convert to fraction form
    209,190.06/288,684.54 = 113,696.78/x
  3. Step 3: Cross multiply
    209,190.06x = 288,684.54 × 113,696.78
  4. Step 4: Simplify right side
    209,190.06x = 32,822,501,190.36
  5. Step 5: Solve for x
    x = 32,822,501,190.36/209,190.06
  6. Step 6: Final answer
    x = 156,902.78

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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.