Home / 109,704.57-151,403.48-79,102.83

Finding the Fourth Proportional to 109,704.57, 151,403.48 and 79,102.83

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Solution

The fourth proportional to 109,704.57, 151,403.48 and 79,102.83 is: 109,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,704.57 : 151,403.48 = 79,102.83 : x
  2. Step 2: Convert to fraction form
    109,704.57/151,403.48 = 79,102.83/x
  3. Step 3: Cross multiply
    109,704.57x = 151,403.48 × 79,102.83
  4. Step 4: Simplify right side
    109,704.57x = 11,976,443,739.85
  5. Step 5: Solve for x
    x = 11,976,443,739.85/109,704.57
  6. Step 6: Final answer
    x = 109,169.96

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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.