Home / 209,134.22-288,607.06-113,640.92

Finding the Fourth Proportional to 209,134.22, 288,607.06 and 113,640.92

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Solution

The fourth proportional to 209,134.22, 288,607.06 and 113,640.92 is: 156,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,134.22 : 288,607.06 = 113,640.92 : x
  2. Step 2: Convert to fraction form
    209,134.22/288,607.06 = 113,640.92/x
  3. Step 3: Cross multiply
    209,134.22x = 288,607.06 × 113,640.92
  4. Step 4: Simplify right side
    209,134.22x = 32,797,571,816.90
  5. Step 5: Solve for x
    x = 32,797,571,816.90/209,134.22
  6. Step 6: Final answer
    x = 156,825.47

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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.