Home / 198,870.39-274,447.31-112,832.98

Finding the Fourth Proportional to 198,870.39, 274,447.31 and 112,832.98

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Solution

The fourth proportional to 198,870.39, 274,447.31 and 112,832.98 is: 155,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,870.39 : 274,447.31 = 112,832.98 : x
  2. Step 2: Convert to fraction form
    198,870.39/274,447.31 = 112,832.98/x
  3. Step 3: Cross multiply
    198,870.39x = 274,447.31 × 112,832.98
  4. Step 4: Simplify right side
    198,870.39x = 30,966,707,840.28
  5. Step 5: Solve for x
    x = 30,966,707,840.28/198,870.39
  6. Step 6: Final answer
    x = 155,713.01

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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.