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Finding the Fourth Proportional to 161,230.80, 241,846.20 and 81,514.65

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Solution

The fourth proportional to 161,230.80, 241,846.20 and 81,514.65 is: 122,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,230.80 : 241,846.20 = 81,514.65 : x
  2. Step 2: Convert to fraction form
    161,230.80/241,846.20 = 81,514.65/x
  3. Step 3: Cross multiply
    161,230.80x = 241,846.20 × 81,514.65
  4. Step 4: Simplify right side
    161,230.80x = 19,714,008,346.83
  5. Step 5: Solve for x
    x = 19,714,008,346.83/161,230.80
  6. Step 6: Final answer
    x = 122,271.98

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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.