Home / 193,739.88-290,742.08-67,378.88

Finding the Fourth Proportional to 193,739.88, 290,742.08 and 67,378.88

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Solution

The fourth proportional to 193,739.88, 290,742.08 and 67,378.88 is: 101,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,739.88 : 290,742.08 = 67,378.88 : x
  2. Step 2: Convert to fraction form
    193,739.88/290,742.08 = 67,378.88/x
  3. Step 3: Cross multiply
    193,739.88x = 290,742.08 × 67,378.88
  4. Step 4: Simplify right side
    193,739.88x = 19,589,873,928.67
  5. Step 5: Solve for x
    x = 19,589,873,928.67/193,739.88
  6. Step 6: Final answer
    x = 101,114.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.