Home / 156,940.60-235,441.19-66,982

Finding the Fourth Proportional to 156,940.60, 235,441.19 and 66,982

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Solution

The fourth proportional to 156,940.60, 235,441.19 and 66,982 is: 100,485.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,940.60 : 235,441.19 = 66,982 : x
  2. Step 2: Convert to fraction form
    156,940.60/235,441.19 = 66,982/x
  3. Step 3: Cross multiply
    156,940.60x = 235,441.19 × 66,982
  4. Step 4: Simplify right side
    156,940.60x = 15,770,321,788.58
  5. Step 5: Solve for x
    x = 15,770,321,788.58/156,940.60
  6. Step 6: Final answer
    x = 100,485.93

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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.