Home / 117,997.20-162,826.20-66,999.60

Finding the Fourth Proportional to 117,997.20, 162,826.20 and 66,999.60

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Solution

The fourth proportional to 117,997.20, 162,826.20 and 66,999.60 is: 92,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,997.20 : 162,826.20 = 66,999.60 : x
  2. Step 2: Convert to fraction form
    117,997.20/162,826.20 = 66,999.60/x
  3. Step 3: Cross multiply
    117,997.20x = 162,826.20 × 66,999.60
  4. Step 4: Simplify right side
    117,997.20x = 10,909,290,269.52
  5. Step 5: Solve for x
    x = 10,909,290,269.52/117,997.20
  6. Step 6: Final answer
    x = 92,453.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.