Home / 209,153.94-288,632.19-113,660.42

Finding the Fourth Proportional to 209,153.94, 288,632.19 and 113,660.42

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Solution

The fourth proportional to 209,153.94, 288,632.19 and 113,660.42 is: 156,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,153.94 : 288,632.19 = 113,660.42 : x
  2. Step 2: Convert to fraction form
    209,153.94/288,632.19 = 113,660.42/x
  3. Step 3: Cross multiply
    209,153.94x = 288,632.19 × 113,660.42
  4. Step 4: Simplify right side
    209,153.94x = 32,806,055,940.92
  5. Step 5: Solve for x
    x = 32,806,055,940.92/209,153.94
  6. Step 6: Final answer
    x = 156,851.25

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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.