Home / 122,305.51-168,625.36-79,208.86

Finding the Fourth Proportional to 122,305.51, 168,625.36 and 79,208.86

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Solution

The fourth proportional to 122,305.51, 168,625.36 and 79,208.86 is: 109,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,305.51 : 168,625.36 = 79,208.86 : x
  2. Step 2: Convert to fraction form
    122,305.51/168,625.36 = 79,208.86/x
  3. Step 3: Cross multiply
    122,305.51x = 168,625.36 × 79,208.86
  4. Step 4: Simplify right side
    122,305.51x = 13,356,622,532.69
  5. Step 5: Solve for x
    x = 13,356,622,532.69/122,305.51
  6. Step 6: Final answer
    x = 109,207.04

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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.