Home / 198,986.41-274,598.67-108,341.34

Finding the Fourth Proportional to 198,986.41, 274,598.67 and 108,341.34

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Solution

The fourth proportional to 198,986.41, 274,598.67 and 108,341.34 is: 149,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,986.41 : 274,598.67 = 108,341.34 : x
  2. Step 2: Convert to fraction form
    198,986.41/274,598.67 = 108,341.34/x
  3. Step 3: Cross multiply
    198,986.41x = 274,598.67 × 108,341.34
  4. Step 4: Simplify right side
    198,986.41x = 29,750,387,870.02
  5. Step 5: Solve for x
    x = 29,750,387,870.02/198,986.41
  6. Step 6: Final answer
    x = 149,509.65

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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.