Home / 198,633.06-297,855.60-72,185.16

Finding the Fourth Proportional to 198,633.06, 297,855.60 and 72,185.16

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Solution

The fourth proportional to 198,633.06, 297,855.60 and 72,185.16 is: 108,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,633.06 : 297,855.60 = 72,185.16 : x
  2. Step 2: Convert to fraction form
    198,633.06/297,855.60 = 72,185.16/x
  3. Step 3: Cross multiply
    198,633.06x = 297,855.60 × 72,185.16
  4. Step 4: Simplify right side
    198,633.06x = 21,500,754,142.90
  5. Step 5: Solve for x
    x = 21,500,754,142.90/198,633.06
  6. Step 6: Final answer
    x = 108,243.58

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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.