Home / 216,172.15-298,286.71-120,676.75

Finding the Fourth Proportional to 216,172.15, 298,286.71 and 120,676.75

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Solution

The fourth proportional to 216,172.15, 298,286.71 and 120,676.75 is: 166,516.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,172.15 : 298,286.71 = 120,676.75 : x
  2. Step 2: Convert to fraction form
    216,172.15/298,286.71 = 120,676.75/x
  3. Step 3: Cross multiply
    216,172.15x = 298,286.71 × 120,676.75
  4. Step 4: Simplify right side
    216,172.15x = 35,996,270,730.99
  5. Step 5: Solve for x
    x = 35,996,270,730.99/216,172.15
  6. Step 6: Final answer
    x = 166,516.69

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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.