Home / 209,135.08-288,608.22-113,641.76

Finding the Fourth Proportional to 209,135.08, 288,608.22 and 113,641.76

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Solution

The fourth proportional to 209,135.08, 288,608.22 and 113,641.76 is: 156,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,135.08 : 288,608.22 = 113,641.76 : x
  2. Step 2: Convert to fraction form
    209,135.08/288,608.22 = 113,641.76/x
  3. Step 3: Cross multiply
    209,135.08x = 288,608.22 × 113,641.76
  4. Step 4: Simplify right side
    209,135.08x = 32,797,946,071.27
  5. Step 5: Solve for x
    x = 32,797,946,071.27/209,135.08
  6. Step 6: Final answer
    x = 156,826.61

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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.