Home / 198,854.75-274,419.60-109,430.75

Finding the Fourth Proportional to 198,854.75, 274,419.60 and 109,430.75

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Solution

The fourth proportional to 198,854.75, 274,419.60 and 109,430.75 is: 151,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,854.75 : 274,419.60 = 109,430.75 : x
  2. Step 2: Convert to fraction form
    198,854.75/274,419.60 = 109,430.75/x
  3. Step 3: Cross multiply
    198,854.75x = 274,419.60 × 109,430.75
  4. Step 4: Simplify right side
    198,854.75x = 30,029,942,642.70
  5. Step 5: Solve for x
    x = 30,029,942,642.70/198,854.75
  6. Step 6: Final answer
    x = 151,014.46

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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.