Home / 198,628.49-297,848.97-72,179.52

Finding the Fourth Proportional to 198,628.49, 297,848.97 and 72,179.52

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Solution

The fourth proportional to 198,628.49, 297,848.97 and 72,179.52 is: 108,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,628.49 : 297,848.97 = 72,179.52 : x
  2. Step 2: Convert to fraction form
    198,628.49/297,848.97 = 72,179.52/x
  3. Step 3: Cross multiply
    198,628.49x = 297,848.97 × 72,179.52
  4. Step 4: Simplify right side
    198,628.49x = 21,498,595,687.09
  5. Step 5: Solve for x
    x = 21,498,595,687.09/198,628.49
  6. Step 6: Final answer
    x = 108,235.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.