Home / 129,028.20-193,542.30-34,258.20

Finding the Fourth Proportional to 129,028.20, 193,542.30 and 34,258.20

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Solution

The fourth proportional to 129,028.20, 193,542.30 and 34,258.20 is: 51,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,028.20 : 193,542.30 = 34,258.20 : x
  2. Step 2: Convert to fraction form
    129,028.20/193,542.30 = 34,258.20/x
  3. Step 3: Cross multiply
    129,028.20x = 193,542.30 × 34,258.20
  4. Step 4: Simplify right side
    129,028.20x = 6,630,410,821.86
  5. Step 5: Solve for x
    x = 6,630,410,821.86/129,028.20
  6. Step 6: Final answer
    x = 51,387.30

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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.