Home / 161,745.40-242,625.30-55,127.80

Finding the Fourth Proportional to 161,745.40, 242,625.30 and 55,127.80

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Solution

The fourth proportional to 161,745.40, 242,625.30 and 55,127.80 is: 82,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,745.40 : 242,625.30 = 55,127.80 : x
  2. Step 2: Convert to fraction form
    161,745.40/242,625.30 = 55,127.80/x
  3. Step 3: Cross multiply
    161,745.40x = 242,625.30 × 55,127.80
  4. Step 4: Simplify right side
    161,745.40x = 13,375,399,013.34
  5. Step 5: Solve for x
    x = 13,375,399,013.34/161,745.40
  6. Step 6: Final answer
    x = 82,694.15

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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.