Home / 198,570.13-274,028.60-107,926.31

Finding the Fourth Proportional to 198,570.13, 274,028.60 and 107,926.31

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Solution

The fourth proportional to 198,570.13, 274,028.60 and 107,926.31 is: 148,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,570.13 : 274,028.60 = 107,926.31 : x
  2. Step 2: Convert to fraction form
    198,570.13/274,028.60 = 107,926.31/x
  3. Step 3: Cross multiply
    198,570.13x = 274,028.60 × 107,926.31
  4. Step 4: Simplify right side
    198,570.13x = 29,574,895,045.94
  5. Step 5: Solve for x
    x = 29,574,895,045.94/198,570.13
  6. Step 6: Final answer
    x = 148,939.29

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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.