Home / 148,128.97-222,193.46-81,534.82

Finding the Fourth Proportional to 148,128.97, 222,193.46 and 81,534.82

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Solution

The fourth proportional to 148,128.97, 222,193.46 and 81,534.82 is: 122,302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,128.97 : 222,193.46 = 81,534.82 : x
  2. Step 2: Convert to fraction form
    148,128.97/222,193.46 = 81,534.82/x
  3. Step 3: Cross multiply
    148,128.97x = 222,193.46 × 81,534.82
  4. Step 4: Simplify right side
    148,128.97x = 18,116,503,766.28
  5. Step 5: Solve for x
    x = 18,116,503,766.28/148,128.97
  6. Step 6: Final answer
    x = 122,302.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.