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Finding the Fourth Proportional to 172,684.89, 259,174.95 and 67,577.67

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Solution

The fourth proportional to 172,684.89, 259,174.95 and 67,577.67 is: 101,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,684.89 : 259,174.95 = 67,577.67 : x
  2. Step 2: Convert to fraction form
    172,684.89/259,174.95 = 67,577.67/x
  3. Step 3: Cross multiply
    172,684.89x = 259,174.95 × 67,577.67
  4. Step 4: Simplify right side
    172,684.89x = 17,514,439,243.37
  5. Step 5: Solve for x
    x = 17,514,439,243.37/172,684.89
  6. Step 6: Final answer
    x = 101,424.27

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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.