Home / 198,720.48-274,273.20-113,894.40

Finding the Fourth Proportional to 198,720.48, 274,273.20 and 113,894.40

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Solution

The fourth proportional to 198,720.48, 274,273.20 and 113,894.40 is: 157,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,720.48 : 274,273.20 = 113,894.40 : x
  2. Step 2: Convert to fraction form
    198,720.48/274,273.20 = 113,894.40/x
  3. Step 3: Cross multiply
    198,720.48x = 274,273.20 × 113,894.40
  4. Step 4: Simplify right side
    198,720.48x = 31,238,181,550.08
  5. Step 5: Solve for x
    x = 31,238,181,550.08/198,720.48
  6. Step 6: Final answer
    x = 157,196.59

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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.