Home / 216,815.80-299,198.28-120,023.86

Finding the Fourth Proportional to 216,815.80, 299,198.28 and 120,023.86

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Solution

The fourth proportional to 216,815.80, 299,198.28 and 120,023.86 is: 165,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,815.80 : 299,198.28 = 120,023.86 : x
  2. Step 2: Convert to fraction form
    216,815.80/299,198.28 = 120,023.86/x
  3. Step 3: Cross multiply
    216,815.80x = 299,198.28 × 120,023.86
  4. Step 4: Simplify right side
    216,815.80x = 35,910,932,470.96
  5. Step 5: Solve for x
    x = 35,910,932,470.96/216,815.80
  6. Step 6: Final answer
    x = 165,628.76

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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.