Home / 216,121.15-298,235.03-120,633.98

Finding the Fourth Proportional to 216,121.15, 298,235.03 and 120,633.98

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Solution

The fourth proportional to 216,121.15, 298,235.03 and 120,633.98 is: 166,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,121.15 : 298,235.03 = 120,633.98 : x
  2. Step 2: Convert to fraction form
    216,121.15/298,235.03 = 120,633.98/x
  3. Step 3: Cross multiply
    216,121.15x = 298,235.03 × 120,633.98
  4. Step 4: Simplify right side
    216,121.15x = 35,977,278,786.74
  5. Step 5: Solve for x
    x = 35,977,278,786.74/216,121.15
  6. Step 6: Final answer
    x = 166,468.11

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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.