Home / 131,619.23-181,633.94-71,189.73

Finding the Fourth Proportional to 131,619.23, 181,633.94 and 71,189.73

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Solution

The fourth proportional to 131,619.23, 181,633.94 and 71,189.73 is: 98,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,619.23 : 181,633.94 = 71,189.73 : x
  2. Step 2: Convert to fraction form
    131,619.23/181,633.94 = 71,189.73/x
  3. Step 3: Cross multiply
    131,619.23x = 181,633.94 × 71,189.73
  4. Step 4: Simplify right side
    131,619.23x = 12,930,471,714.31
  5. Step 5: Solve for x
    x = 12,930,471,714.31/131,619.23
  6. Step 6: Final answer
    x = 98,241.51

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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.