Home / 217,117.20-325,660.18-67,353.60

Finding the Fourth Proportional to 217,117.20, 325,660.18 and 67,353.60

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Solution

The fourth proportional to 217,117.20, 325,660.18 and 67,353.60 is: 101,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,117.20 : 325,660.18 = 67,353.60 : x
  2. Step 2: Convert to fraction form
    217,117.20/325,660.18 = 67,353.60/x
  3. Step 3: Cross multiply
    217,117.20x = 325,660.18 × 67,353.60
  4. Step 4: Simplify right side
    217,117.20x = 21,934,385,499.65
  5. Step 5: Solve for x
    x = 21,934,385,499.65/217,117.20
  6. Step 6: Final answer
    x = 101,025.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.