Home / 198,648.36-274,194-130,717.72

Finding the Fourth Proportional to 198,648.36, 274,194 and 130,717.72

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Solution

The fourth proportional to 198,648.36, 274,194 and 130,717.72 is: 180,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,648.36 : 274,194 = 130,717.72 : x
  2. Step 2: Convert to fraction form
    198,648.36/274,194 = 130,717.72/x
  3. Step 3: Cross multiply
    198,648.36x = 274,194 × 130,717.72
  4. Step 4: Simplify right side
    198,648.36x = 35,842,014,517.68
  5. Step 5: Solve for x
    x = 35,842,014,517.68/198,648.36
  6. Step 6: Final answer
    x = 180,429.45

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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.