Home / 68,137.20-102,205.80-44,517.60

Finding the Fourth Proportional to 68,137.20, 102,205.80 and 44,517.60

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Solution

The fourth proportional to 68,137.20, 102,205.80 and 44,517.60 is: 66,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,137.20 : 102,205.80 = 44,517.60 : x
  2. Step 2: Convert to fraction form
    68,137.20/102,205.80 = 44,517.60/x
  3. Step 3: Cross multiply
    68,137.20x = 102,205.80 × 44,517.60
  4. Step 4: Simplify right side
    68,137.20x = 4,549,956,922.08
  5. Step 5: Solve for x
    x = 4,549,956,922.08/68,137.20
  6. Step 6: Final answer
    x = 66,776.40

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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.