Home / 131,464.20-197,196.30-121,326.60

Finding the Fourth Proportional to 131,464.20, 197,196.30 and 121,326.60

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Solution

The fourth proportional to 131,464.20, 197,196.30 and 121,326.60 is: 181,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464.20 : 197,196.30 = 121,326.60 : x
  2. Step 2: Convert to fraction form
    131,464.20/197,196.30 = 121,326.60/x
  3. Step 3: Cross multiply
    131,464.20x = 197,196.30 × 121,326.60
  4. Step 4: Simplify right side
    131,464.20x = 23,925,156,611.58
  5. Step 5: Solve for x
    x = 23,925,156,611.58/131,464.20
  6. Step 6: Final answer
    x = 181,989.90

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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.