Home / 124,778.46-172,194.34-68,189.83

Finding the Fourth Proportional to 124,778.46, 172,194.34 and 68,189.83

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Solution

The fourth proportional to 124,778.46, 172,194.34 and 68,189.83 is: 94,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,778.46 : 172,194.34 = 68,189.83 : x
  2. Step 2: Convert to fraction form
    124,778.46/172,194.34 = 68,189.83/x
  3. Step 3: Cross multiply
    124,778.46x = 172,194.34 × 68,189.83
  4. Step 4: Simplify right side
    124,778.46x = 11,741,902,771.56
  5. Step 5: Solve for x
    x = 11,741,902,771.56/124,778.46
  6. Step 6: Final answer
    x = 94,102.00

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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.