Home / 192,488.40-288,295.20-121,629.60

Finding the Fourth Proportional to 192,488.40, 288,295.20 and 121,629.60

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Solution

The fourth proportional to 192,488.40, 288,295.20 and 121,629.60 is: 182,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,488.40 : 288,295.20 = 121,629.60 : x
  2. Step 2: Convert to fraction form
    192,488.40/288,295.20 = 121,629.60/x
  3. Step 3: Cross multiply
    192,488.40x = 288,295.20 × 121,629.60
  4. Step 4: Simplify right side
    192,488.40x = 35,065,229,857.92
  5. Step 5: Solve for x
    x = 35,065,229,857.92/192,488.40
  6. Step 6: Final answer
    x = 182,168.02

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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.