Home / 209,081.79-288,532.11-113,587.65

Finding the Fourth Proportional to 209,081.79, 288,532.11 and 113,587.65

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Solution

The fourth proportional to 209,081.79, 288,532.11 and 113,587.65 is: 156,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,081.79 : 288,532.11 = 113,587.65 : x
  2. Step 2: Convert to fraction form
    209,081.79/288,532.11 = 113,587.65/x
  3. Step 3: Cross multiply
    209,081.79x = 288,532.11 × 113,587.65
  4. Step 4: Simplify right side
    209,081.79x = 32,773,684,324.44
  5. Step 5: Solve for x
    x = 32,773,684,324.44/209,081.79
  6. Step 6: Final answer
    x = 156,750.54

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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.