Home / 122,409.45-183,611.75-80,553.92

Finding the Fourth Proportional to 122,409.45, 183,611.75 and 80,553.92

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Solution

The fourth proportional to 122,409.45, 183,611.75 and 80,553.92 is: 120,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,409.45 : 183,611.75 = 80,553.92 : x
  2. Step 2: Convert to fraction form
    122,409.45/183,611.75 = 80,553.92/x
  3. Step 3: Cross multiply
    122,409.45x = 183,611.75 × 80,553.92
  4. Step 4: Simplify right side
    122,409.45x = 14,790,644,899.73
  5. Step 5: Solve for x
    x = 14,790,644,899.73/122,409.45
  6. Step 6: Final answer
    x = 120,829.27

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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.