Home / 120,511.44-166,286.25-75,182.22

Finding the Fourth Proportional to 120,511.44, 166,286.25 and 75,182.22

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Solution

The fourth proportional to 120,511.44, 166,286.25 and 75,182.22 is: 103,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,511.44 : 166,286.25 = 75,182.22 : x
  2. Step 2: Convert to fraction form
    120,511.44/166,286.25 = 75,182.22/x
  3. Step 3: Cross multiply
    120,511.44x = 166,286.25 × 75,182.22
  4. Step 4: Simplify right side
    120,511.44x = 12,501,769,430.48
  5. Step 5: Solve for x
    x = 12,501,769,430.48/120,511.44
  6. Step 6: Final answer
    x = 103,739.28

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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.