Home / 211,933.92-317,120.04-127,743.60

Finding the Fourth Proportional to 211,933.92, 317,120.04 and 127,743.60

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Solution

The fourth proportional to 211,933.92, 317,120.04 and 127,743.60 is: 191,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,933.92 : 317,120.04 = 127,743.60 : x
  2. Step 2: Convert to fraction form
    211,933.92/317,120.04 = 127,743.60/x
  3. Step 3: Cross multiply
    211,933.92x = 317,120.04 × 127,743.60
  4. Step 4: Simplify right side
    211,933.92x = 40,510,055,541.74
  5. Step 5: Solve for x
    x = 40,510,055,541.74/211,933.92
  6. Step 6: Final answer
    x = 191,144.75

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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.