Home / 159,961.08-220,733.40-91,974.60

Finding the Fourth Proportional to 159,961.08, 220,733.40 and 91,974.60

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Solution

The fourth proportional to 159,961.08, 220,733.40 and 91,974.60 is: 126,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,961.08 : 220,733.40 = 91,974.60 : x
  2. Step 2: Convert to fraction form
    159,961.08/220,733.40 = 91,974.60/x
  3. Step 3: Cross multiply
    159,961.08x = 220,733.40 × 91,974.60
  4. Step 4: Simplify right side
    159,961.08x = 20,301,866,171.64
  5. Step 5: Solve for x
    x = 20,301,866,171.64/159,961.08
  6. Step 6: Final answer
    x = 126,917.54

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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.