Home / 172,404.90-258,596.85-82,511.52

Finding the Fourth Proportional to 172,404.90, 258,596.85 and 82,511.52

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Solution

The fourth proportional to 172,404.90, 258,596.85 and 82,511.52 is: 123,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,404.90 : 258,596.85 = 82,511.52 : x
  2. Step 2: Convert to fraction form
    172,404.90/258,596.85 = 82,511.52/x
  3. Step 3: Cross multiply
    172,404.90x = 258,596.85 × 82,511.52
  4. Step 4: Simplify right side
    172,404.90x = 21,337,219,160.71
  5. Step 5: Solve for x
    x = 21,337,219,160.71/172,404.90
  6. Step 6: Final answer
    x = 123,762.25

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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.