Home / 216,109.06-298,230.86-120,615.73

Finding the Fourth Proportional to 216,109.06, 298,230.86 and 120,615.73

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Solution

The fourth proportional to 216,109.06, 298,230.86 and 120,615.73 is: 166,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,109.06 : 298,230.86 = 120,615.73 : x
  2. Step 2: Convert to fraction form
    216,109.06/298,230.86 = 120,615.73/x
  3. Step 3: Cross multiply
    216,109.06x = 298,230.86 × 120,615.73
  4. Step 4: Simplify right side
    216,109.06x = 35,971,332,887.43
  5. Step 5: Solve for x
    x = 35,971,332,887.43/216,109.06
  6. Step 6: Final answer
    x = 166,449.91

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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.