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Finding the Fourth Proportional to 147,379.60, 203,383.84 and 80,311.60

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Solution

The fourth proportional to 147,379.60, 203,383.84 and 80,311.60 is: 110,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,379.60 : 203,383.84 = 80,311.60 : x
  2. Step 2: Convert to fraction form
    147,379.60/203,383.84 = 80,311.60/x
  3. Step 3: Cross multiply
    147,379.60x = 203,383.84 × 80,311.60
  4. Step 4: Simplify right side
    147,379.60x = 16,334,081,604.54
  5. Step 5: Solve for x
    x = 16,334,081,604.54/147,379.60
  6. Step 6: Final answer
    x = 110,830.00

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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.