Home / 148,668.15-222,546.60-81,903.90

Finding the Fourth Proportional to 148,668.15, 222,546.60 and 81,903.90

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Solution

The fourth proportional to 148,668.15, 222,546.60 and 81,903.90 is: 122,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,668.15 : 222,546.60 = 81,903.90 : x
  2. Step 2: Convert to fraction form
    148,668.15/222,546.60 = 81,903.90/x
  3. Step 3: Cross multiply
    148,668.15x = 222,546.60 × 81,903.90
  4. Step 4: Simplify right side
    148,668.15x = 18,227,434,471.74
  5. Step 5: Solve for x
    x = 18,227,434,471.74/148,668.15
  6. Step 6: Final answer
    x = 122,604.84

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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.