Home / 140,739.96-194,221.44-76,209.90

Finding the Fourth Proportional to 140,739.96, 194,221.44 and 76,209.90

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Solution

The fourth proportional to 140,739.96, 194,221.44 and 76,209.90 is: 105,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,739.96 : 194,221.44 = 76,209.90 : x
  2. Step 2: Convert to fraction form
    140,739.96/194,221.44 = 76,209.90/x
  3. Step 3: Cross multiply
    140,739.96x = 194,221.44 × 76,209.90
  4. Step 4: Simplify right side
    140,739.96x = 14,801,596,520.26
  5. Step 5: Solve for x
    x = 14,801,596,520.26/140,739.96
  6. Step 6: Final answer
    x = 105,169.82

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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.