Home / 136,234.96-188,008.73-85,231.38

Finding the Fourth Proportional to 136,234.96, 188,008.73 and 85,231.38

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Solution

The fourth proportional to 136,234.96, 188,008.73 and 85,231.38 is: 117,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,234.96 : 188,008.73 = 85,231.38 : x
  2. Step 2: Convert to fraction form
    136,234.96/188,008.73 = 85,231.38/x
  3. Step 3: Cross multiply
    136,234.96x = 188,008.73 × 85,231.38
  4. Step 4: Simplify right side
    136,234.96x = 16,024,244,108.44
  5. Step 5: Solve for x
    x = 16,024,244,108.44/136,234.96
  6. Step 6: Final answer
    x = 117,622.12

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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.