Home / 216,634.44-298,983.38-121,146.51

Finding the Fourth Proportional to 216,634.44, 298,983.38 and 121,146.51

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Solution

The fourth proportional to 216,634.44, 298,983.38 and 121,146.51 is: 167,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,634.44 : 298,983.38 = 121,146.51 : x
  2. Step 2: Convert to fraction form
    216,634.44/298,983.38 = 121,146.51/x
  3. Step 3: Cross multiply
    216,634.44x = 298,983.38 × 121,146.51
  4. Step 4: Simplify right side
    216,634.44x = 36,220,792,429.27
  5. Step 5: Solve for x
    x = 36,220,792,429.27/216,634.44
  6. Step 6: Final answer
    x = 167,197.76

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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.