Home / 172,074.43-258,275.83-105,644.31

Finding the Fourth Proportional to 172,074.43, 258,275.83 and 105,644.31

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Solution

The fourth proportional to 172,074.43, 258,275.83 and 105,644.31 is: 158,567.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,074.43 : 258,275.83 = 105,644.31 : x
  2. Step 2: Convert to fraction form
    172,074.43/258,275.83 = 105,644.31/x
  3. Step 3: Cross multiply
    172,074.43x = 258,275.83 × 105,644.31
  4. Step 4: Simplify right side
    172,074.43x = 27,285,370,676.12
  5. Step 5: Solve for x
    x = 27,285,370,676.12/172,074.43
  6. Step 6: Final answer
    x = 158,567.26

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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.