Home / 216,512.06-298,787.74-121,016.70

Finding the Fourth Proportional to 216,512.06, 298,787.74 and 121,016.70

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Solution

The fourth proportional to 216,512.06, 298,787.74 and 121,016.70 is: 167,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,512.06 : 298,787.74 = 121,016.70 : x
  2. Step 2: Convert to fraction form
    216,512.06/298,787.74 = 121,016.70/x
  3. Step 3: Cross multiply
    216,512.06x = 298,787.74 × 121,016.70
  4. Step 4: Simplify right side
    216,512.06x = 36,158,305,992.72
  5. Step 5: Solve for x
    x = 36,158,305,992.72/216,512.06
  6. Step 6: Final answer
    x = 167,003.66

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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.