Home / 198,110.34-297,239.49-79,815.24

Finding the Fourth Proportional to 198,110.34, 297,239.49 and 79,815.24

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Solution

The fourth proportional to 198,110.34, 297,239.49 and 79,815.24 is: 119,752.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,110.34 : 297,239.49 = 79,815.24 : x
  2. Step 2: Convert to fraction form
    198,110.34/297,239.49 = 79,815.24/x
  3. Step 3: Cross multiply
    198,110.34x = 297,239.49 × 79,815.24
  4. Step 4: Simplify right side
    198,110.34x = 23,724,241,231.83
  5. Step 5: Solve for x
    x = 23,724,241,231.83/198,110.34
  6. Step 6: Final answer
    x = 119,752.67

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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.