Home / 198,634.84-274,121.48-107,996.90

Finding the Fourth Proportional to 198,634.84, 274,121.48 and 107,996.90

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Solution

The fourth proportional to 198,634.84, 274,121.48 and 107,996.90 is: 149,038.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.84 : 274,121.48 = 107,996.90 : x
  2. Step 2: Convert to fraction form
    198,634.84/274,121.48 = 107,996.90/x
  3. Step 3: Cross multiply
    198,634.84x = 274,121.48 × 107,996.90
  4. Step 4: Simplify right side
    198,634.84x = 29,604,271,018.71
  5. Step 5: Solve for x
    x = 29,604,271,018.71/198,634.84
  6. Step 6: Final answer
    x = 149,038.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.