Home / 120,613.96-166,338.30-75,296.12

Finding the Fourth Proportional to 120,613.96, 166,338.30 and 75,296.12

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Solution

The fourth proportional to 120,613.96, 166,338.30 and 75,296.12 is: 103,840.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,613.96 : 166,338.30 = 75,296.12 : x
  2. Step 2: Convert to fraction form
    120,613.96/166,338.30 = 75,296.12/x
  3. Step 3: Cross multiply
    120,613.96x = 166,338.30 × 75,296.12
  4. Step 4: Simplify right side
    120,613.96x = 12,524,628,597.40
  5. Step 5: Solve for x
    x = 12,524,628,597.40/120,613.96
  6. Step 6: Final answer
    x = 103,840.63

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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.