Home / 172,052.20-258,078.30-169,427.80

Finding the Fourth Proportional to 172,052.20, 258,078.30 and 169,427.80

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Solution

The fourth proportional to 172,052.20, 258,078.30 and 169,427.80 is: 254,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,052.20 : 258,078.30 = 169,427.80 : x
  2. Step 2: Convert to fraction form
    172,052.20/258,078.30 = 169,427.80/x
  3. Step 3: Cross multiply
    172,052.20x = 258,078.30 × 169,427.80
  4. Step 4: Simplify right side
    172,052.20x = 43,725,638,596.74
  5. Step 5: Solve for x
    x = 43,725,638,596.74/172,052.20
  6. Step 6: Final answer
    x = 254,141.70

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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.