Home / 211,528.20-317,195.10-93,138.60

Finding the Fourth Proportional to 211,528.20, 317,195.10 and 93,138.60

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Solution

The fourth proportional to 211,528.20, 317,195.10 and 93,138.60 is: 139,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.20 : 317,195.10 = 93,138.60 : x
  2. Step 2: Convert to fraction form
    211,528.20/317,195.10 = 93,138.60/x
  3. Step 3: Cross multiply
    211,528.20x = 317,195.10 × 93,138.60
  4. Step 4: Simplify right side
    211,528.20x = 29,543,107,540.86
  5. Step 5: Solve for x
    x = 29,543,107,540.86/211,528.20
  6. Step 6: Final answer
    x = 139,665.10

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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.