Home / 209,408.12-288,982.98-113,914.58

Finding the Fourth Proportional to 209,408.12, 288,982.98 and 113,914.58

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Solution

The fourth proportional to 209,408.12, 288,982.98 and 113,914.58 is: 157,202.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,408.12 : 288,982.98 = 113,914.58 : x
  2. Step 2: Convert to fraction form
    209,408.12/288,982.98 = 113,914.58/x
  3. Step 3: Cross multiply
    209,408.12x = 288,982.98 × 113,914.58
  4. Step 4: Simplify right side
    209,408.12x = 32,919,374,793.85
  5. Step 5: Solve for x
    x = 32,919,374,793.85/209,408.12
  6. Step 6: Final answer
    x = 157,202.00

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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.