Home / 120,899.56-166,842.30-67,189.60

Finding the Fourth Proportional to 120,899.56, 166,842.30 and 67,189.60

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Solution

The fourth proportional to 120,899.56, 166,842.30 and 67,189.60 is: 92,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,899.56 : 166,842.30 = 67,189.60 : x
  2. Step 2: Convert to fraction form
    120,899.56/166,842.30 = 67,189.60/x
  3. Step 3: Cross multiply
    120,899.56x = 166,842.30 × 67,189.60
  4. Step 4: Simplify right side
    120,899.56x = 11,210,067,400.08
  5. Step 5: Solve for x
    x = 11,210,067,400.08/120,899.56
  6. Step 6: Final answer
    x = 92,722.15

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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.