Home / 209,199.06-288,696.96-113,705.79

Finding the Fourth Proportional to 209,199.06, 288,696.96 and 113,705.79

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Solution

The fourth proportional to 209,199.06, 288,696.96 and 113,705.79 is: 156,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,199.06 : 288,696.96 = 113,705.79 : x
  2. Step 2: Convert to fraction form
    209,199.06/288,696.96 = 113,705.79/x
  3. Step 3: Cross multiply
    209,199.06x = 288,696.96 × 113,705.79
  4. Step 4: Simplify right side
    209,199.06x = 32,826,515,907.40
  5. Step 5: Solve for x
    x = 32,826,515,907.40/209,199.06
  6. Step 6: Final answer
    x = 156,915.22

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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.