Home / 198,758.05-274,357.33-118,185.33

Finding the Fourth Proportional to 198,758.05, 274,357.33 and 118,185.33

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Solution

The fourth proportional to 198,758.05, 274,357.33 and 118,185.33 is: 163,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,758.05 : 274,357.33 = 118,185.33 : x
  2. Step 2: Convert to fraction form
    198,758.05/274,357.33 = 118,185.33/x
  3. Step 3: Cross multiply
    198,758.05x = 274,357.33 × 118,185.33
  4. Step 4: Simplify right side
    198,758.05x = 32,425,010,774.09
  5. Step 5: Solve for x
    x = 32,425,010,774.09/198,758.05
  6. Step 6: Final answer
    x = 163,138.10

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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.