Home / 198,985.09-274,597.66-108,340.83

Finding the Fourth Proportional to 198,985.09, 274,597.66 and 108,340.83

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Solution

The fourth proportional to 198,985.09, 274,597.66 and 108,340.83 is: 149,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,985.09 : 274,597.66 = 108,340.83 : x
  2. Step 2: Convert to fraction form
    198,985.09/274,597.66 = 108,340.83/x
  3. Step 3: Cross multiply
    198,985.09x = 274,597.66 × 108,340.83
  4. Step 4: Simplify right side
    198,985.09x = 29,750,138,400.46
  5. Step 5: Solve for x
    x = 29,750,138,400.46/198,985.09
  6. Step 6: Final answer
    x = 149,509.38

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1.5x scale

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.