Home / 122,110.28-168,513.88-79,644.44

Finding the Fourth Proportional to 122,110.28, 168,513.88 and 79,644.44

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Solution

The fourth proportional to 122,110.28, 168,513.88 and 79,644.44 is: 109,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,110.28 : 168,513.88 = 79,644.44 : x
  2. Step 2: Convert to fraction form
    122,110.28/168,513.88 = 79,644.44/x
  3. Step 3: Cross multiply
    122,110.28x = 168,513.88 × 79,644.44
  4. Step 4: Simplify right side
    122,110.28x = 13,421,193,604.83
  5. Step 5: Solve for x
    x = 13,421,193,604.83/122,110.28
  6. Step 6: Final answer
    x = 109,910.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.