Home / 171,511.27-257,220.44-71,650.58

Finding the Fourth Proportional to 171,511.27, 257,220.44 and 71,650.58

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Solution

The fourth proportional to 171,511.27, 257,220.44 and 71,650.58 is: 107,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,511.27 : 257,220.44 = 71,650.58 : x
  2. Step 2: Convert to fraction form
    171,511.27/257,220.44 = 71,650.58/x
  3. Step 3: Cross multiply
    171,511.27x = 257,220.44 × 71,650.58
  4. Step 4: Simplify right side
    171,511.27x = 18,429,992,136.67
  5. Step 5: Solve for x
    x = 18,429,992,136.67/171,511.27
  6. Step 6: Final answer
    x = 107,456.45

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1.5x scale

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.