Home / 131,305.39-181,198.96-80,314.37

Finding the Fourth Proportional to 131,305.39, 181,198.96 and 80,314.37

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Solution

The fourth proportional to 131,305.39, 181,198.96 and 80,314.37 is: 110,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,305.39 : 181,198.96 = 80,314.37 : x
  2. Step 2: Convert to fraction form
    131,305.39/181,198.96 = 80,314.37/x
  3. Step 3: Cross multiply
    131,305.39x = 181,198.96 × 80,314.37
  4. Step 4: Simplify right side
    131,305.39x = 14,552,879,889.77
  5. Step 5: Solve for x
    x = 14,552,879,889.77/131,305.39
  6. Step 6: Final answer
    x = 110,832.31

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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.