Home / 102,830.20-154,245.30-52,840.60

Finding the Fourth Proportional to 102,830.20, 154,245.30 and 52,840.60

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Solution

The fourth proportional to 102,830.20, 154,245.30 and 52,840.60 is: 79,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,830.20 : 154,245.30 = 52,840.60 : x
  2. Step 2: Convert to fraction form
    102,830.20/154,245.30 = 52,840.60/x
  3. Step 3: Cross multiply
    102,830.20x = 154,245.30 × 52,840.60
  4. Step 4: Simplify right side
    102,830.20x = 8,150,414,199.18
  5. Step 5: Solve for x
    x = 8,150,414,199.18/102,830.20
  6. Step 6: Final answer
    x = 79,260.90

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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.