Home / 198,835.12-298,252.68-72,484.84

Finding the Fourth Proportional to 198,835.12, 298,252.68 and 72,484.84

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Solution

The fourth proportional to 198,835.12, 298,252.68 and 72,484.84 is: 108,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,835.12 : 298,252.68 = 72,484.84 : x
  2. Step 2: Convert to fraction form
    198,835.12/298,252.68 = 72,484.84/x
  3. Step 3: Cross multiply
    198,835.12x = 298,252.68 × 72,484.84
  4. Step 4: Simplify right side
    198,835.12x = 21,618,797,789.37
  5. Step 5: Solve for x
    x = 21,618,797,789.37/198,835.12
  6. Step 6: Final answer
    x = 108,727.26

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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.