Home / 81,464.20-122,196.30-74,465.80

Finding the Fourth Proportional to 81,464.20, 122,196.30 and 74,465.80

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Solution

The fourth proportional to 81,464.20, 122,196.30 and 74,465.80 is: 111,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,464.20 : 122,196.30 = 74,465.80 : x
  2. Step 2: Convert to fraction form
    81,464.20/122,196.30 = 74,465.80/x
  3. Step 3: Cross multiply
    81,464.20x = 122,196.30 × 74,465.80
  4. Step 4: Simplify right side
    81,464.20x = 9,099,445,236.54
  5. Step 5: Solve for x
    x = 9,099,445,236.54/81,464.20
  6. Step 6: Final answer
    x = 111,698.70

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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.