Home / 117,872.27-162,550.67-79,197.55

Finding the Fourth Proportional to 117,872.27, 162,550.67 and 79,197.55

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Solution

The fourth proportional to 117,872.27, 162,550.67 and 79,197.55 is: 109,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,872.27 : 162,550.67 = 79,197.55 : x
  2. Step 2: Convert to fraction form
    117,872.27/162,550.67 = 79,197.55/x
  3. Step 3: Cross multiply
    117,872.27x = 162,550.67 × 79,197.55
  4. Step 4: Simplify right side
    117,872.27x = 12,873,614,926.84
  5. Step 5: Solve for x
    x = 12,873,614,926.84/117,872.27
  6. Step 6: Final answer
    x = 109,216.66

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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.