Home / 172,205.06-258,168.26-53,815.46

Finding the Fourth Proportional to 172,205.06, 258,168.26 and 53,815.46

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Solution

The fourth proportional to 172,205.06, 258,168.26 and 53,815.46 is: 80,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,205.06 : 258,168.26 = 53,815.46 : x
  2. Step 2: Convert to fraction form
    172,205.06/258,168.26 = 53,815.46/x
  3. Step 3: Cross multiply
    172,205.06x = 258,168.26 × 53,815.46
  4. Step 4: Simplify right side
    172,205.06x = 13,893,443,669.30
  5. Step 5: Solve for x
    x = 13,893,443,669.30/172,205.06
  6. Step 6: Final answer
    x = 80,679.65

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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.