Home / 172,515.08-258,782.87-54,186.44

Finding the Fourth Proportional to 172,515.08, 258,782.87 and 54,186.44

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Solution

The fourth proportional to 172,515.08, 258,782.87 and 54,186.44 is: 81,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,515.08 : 258,782.87 = 54,186.44 : x
  2. Step 2: Convert to fraction form
    172,515.08/258,782.87 = 54,186.44/x
  3. Step 3: Cross multiply
    172,515.08x = 258,782.87 × 54,186.44
  4. Step 4: Simplify right side
    172,515.08x = 14,022,521,299.83
  5. Step 5: Solve for x
    x = 14,022,521,299.83/172,515.08
  6. Step 6: Final answer
    x = 81,282.87

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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.