Home / 209,089.30-288,541.68-113,596.78

Finding the Fourth Proportional to 209,089.30, 288,541.68 and 113,596.78

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Solution

The fourth proportional to 209,089.30, 288,541.68 and 113,596.78 is: 156,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,089.30 : 288,541.68 = 113,596.78 : x
  2. Step 2: Convert to fraction form
    209,089.30/288,541.68 = 113,596.78/x
  3. Step 3: Cross multiply
    209,089.30x = 288,541.68 × 113,596.78
  4. Step 4: Simplify right side
    209,089.30x = 32,777,405,743.79
  5. Step 5: Solve for x
    x = 32,777,405,743.79/209,089.30
  6. Step 6: Final answer
    x = 156,762.71

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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.