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Finding the Fourth Proportional to 148,622.88, 205,086 and 88,183.12

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Solution

The fourth proportional to 148,622.88, 205,086 and 88,183.12 is: 121,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,622.88 : 205,086 = 88,183.12 : x
  2. Step 2: Convert to fraction form
    148,622.88/205,086 = 88,183.12/x
  3. Step 3: Cross multiply
    148,622.88x = 205,086 × 88,183.12
  4. Step 4: Simplify right side
    148,622.88x = 18,085,123,348.32
  5. Step 5: Solve for x
    x = 18,085,123,348.32/148,622.88
  6. Step 6: Final answer
    x = 121,684.65

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1.5x scale

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.