Home / 198,637.51-274,113.99-112,604.47

Finding the Fourth Proportional to 198,637.51, 274,113.99 and 112,604.47

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Solution

The fourth proportional to 198,637.51, 274,113.99 and 112,604.47 is: 155,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.51 : 274,113.99 = 112,604.47 : x
  2. Step 2: Convert to fraction form
    198,637.51/274,113.99 = 112,604.47/x
  3. Step 3: Cross multiply
    198,637.51x = 274,113.99 × 112,604.47
  4. Step 4: Simplify right side
    198,637.51x = 30,866,458,629.94
  5. Step 5: Solve for x
    x = 30,866,458,629.94/198,637.51
  6. Step 6: Final answer
    x = 155,390.89

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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.