Home / 198,623.17-274,101.29-107,979.94

Finding the Fourth Proportional to 198,623.17, 274,101.29 and 107,979.94

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Solution

The fourth proportional to 198,623.17, 274,101.29 and 107,979.94 is: 149,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,623.17 : 274,101.29 = 107,979.94 : x
  2. Step 2: Convert to fraction form
    198,623.17/274,101.29 = 107,979.94/x
  3. Step 3: Cross multiply
    198,623.17x = 274,101.29 × 107,979.94
  4. Step 4: Simplify right side
    198,623.17x = 29,597,440,848.12
  5. Step 5: Solve for x
    x = 29,597,440,848.12/198,623.17
  6. Step 6: Final answer
    x = 149,013.03

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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.