Home / 198,579.49-274,041.53-107,935.66

Finding the Fourth Proportional to 198,579.49, 274,041.53 and 107,935.66

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Solution

The fourth proportional to 198,579.49, 274,041.53 and 107,935.66 is: 148,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,579.49 : 274,041.53 = 107,935.66 : x
  2. Step 2: Convert to fraction form
    198,579.49/274,041.53 = 107,935.66/x
  3. Step 3: Cross multiply
    198,579.49x = 274,041.53 × 107,935.66
  4. Step 4: Simplify right side
    198,579.49x = 29,578,851,498.07
  5. Step 5: Solve for x
    x = 29,578,851,498.07/198,579.49
  6. Step 6: Final answer
    x = 148,952.20

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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.