Home / 172,511.86-258,685.92-60,178.42

Finding the Fourth Proportional to 172,511.86, 258,685.92 and 60,178.42

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Solution

The fourth proportional to 172,511.86, 258,685.92 and 60,178.42 is: 90,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,511.86 : 258,685.92 = 60,178.42 : x
  2. Step 2: Convert to fraction form
    172,511.86/258,685.92 = 60,178.42/x
  3. Step 3: Cross multiply
    172,511.86x = 258,685.92 × 60,178.42
  4. Step 4: Simplify right side
    172,511.86x = 15,567,309,941.85
  5. Step 5: Solve for x
    x = 15,567,309,941.85/172,511.86
  6. Step 6: Final answer
    x = 90,239.07

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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.