Home / 131,520.80-197,279.37-123,115.43

Finding the Fourth Proportional to 131,520.80, 197,279.37 and 123,115.43

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Solution

The fourth proportional to 131,520.80, 197,279.37 and 123,115.43 is: 184,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,520.80 : 197,279.37 = 123,115.43 : x
  2. Step 2: Convert to fraction form
    131,520.80/197,279.37 = 123,115.43/x
  3. Step 3: Cross multiply
    131,520.80x = 197,279.37 × 123,115.43
  4. Step 4: Simplify right side
    131,520.80x = 24,288,133,481.28
  5. Step 5: Solve for x
    x = 24,288,133,481.28/131,520.80
  6. Step 6: Final answer
    x = 184,671.43

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1.5x scale

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.