Home / 215,966.25-298,033.43-120,472.95

Finding the Fourth Proportional to 215,966.25, 298,033.43 and 120,472.95

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Solution

The fourth proportional to 215,966.25, 298,033.43 and 120,472.95 is: 166,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,966.25 : 298,033.43 = 120,472.95 : x
  2. Step 2: Convert to fraction form
    215,966.25/298,033.43 = 120,472.95/x
  3. Step 3: Cross multiply
    215,966.25x = 298,033.43 × 120,472.95
  4. Step 4: Simplify right side
    215,966.25x = 35,904,964,511.32
  5. Step 5: Solve for x
    x = 35,904,964,511.32/215,966.25
  6. Step 6: Final answer
    x = 166,252.66

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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.