Home / 118,932.70-178,049.12-79,391.74

Finding the Fourth Proportional to 118,932.70, 178,049.12 and 79,391.74

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Solution

The fourth proportional to 118,932.70, 178,049.12 and 79,391.74 is: 118,854.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,932.70 : 178,049.12 = 79,391.74 : x
  2. Step 2: Convert to fraction form
    118,932.70/178,049.12 = 79,391.74/x
  3. Step 3: Cross multiply
    118,932.70x = 178,049.12 × 79,391.74
  4. Step 4: Simplify right side
    118,932.70x = 14,135,629,195.63
  5. Step 5: Solve for x
    x = 14,135,629,195.63/118,932.70
  6. Step 6: Final answer
    x = 118,854.02

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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.