Home / 198,020.75-297,099.16-57,800.03

Finding the Fourth Proportional to 198,020.75, 297,099.16 and 57,800.03

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Solution

The fourth proportional to 198,020.75, 297,099.16 and 57,800.03 is: 86,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,020.75 : 297,099.16 = 57,800.03 : x
  2. Step 2: Convert to fraction form
    198,020.75/297,099.16 = 57,800.03/x
  3. Step 3: Cross multiply
    198,020.75x = 297,099.16 × 57,800.03
  4. Step 4: Simplify right side
    198,020.75x = 17,172,338,730.98
  5. Step 5: Solve for x
    x = 17,172,338,730.98/198,020.75
  6. Step 6: Final answer
    x = 86,719.90

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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.