Home / 163,930.20-245,895.30-85,198.20

Finding the Fourth Proportional to 163,930.20, 245,895.30 and 85,198.20

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Solution

The fourth proportional to 163,930.20, 245,895.30 and 85,198.20 is: 127,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,930.20 : 245,895.30 = 85,198.20 : x
  2. Step 2: Convert to fraction form
    163,930.20/245,895.30 = 85,198.20/x
  3. Step 3: Cross multiply
    163,930.20x = 245,895.30 × 85,198.20
  4. Step 4: Simplify right side
    163,930.20x = 20,949,836,948.46
  5. Step 5: Solve for x
    x = 20,949,836,948.46/163,930.20
  6. Step 6: Final answer
    x = 127,797.30

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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.