Home / 209,187.32-288,676.76-113,694.60

Finding the Fourth Proportional to 209,187.32, 288,676.76 and 113,694.60

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Solution

The fourth proportional to 209,187.32, 288,676.76 and 113,694.60 is: 156,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,187.32 : 288,676.76 = 113,694.60 : x
  2. Step 2: Convert to fraction form
    209,187.32/288,676.76 = 113,694.60/x
  3. Step 3: Cross multiply
    209,187.32x = 288,676.76 × 113,694.60
  4. Step 4: Simplify right side
    209,187.32x = 32,820,988,757.50
  5. Step 5: Solve for x
    x = 32,820,988,757.50/209,187.32
  6. Step 6: Final answer
    x = 156,897.60

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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.