Home / 124,789.89-172,209.67-68,201.27

Finding the Fourth Proportional to 124,789.89, 172,209.67 and 68,201.27

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Solution

The fourth proportional to 124,789.89, 172,209.67 and 68,201.27 is: 94,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,789.89 : 172,209.67 = 68,201.27 : x
  2. Step 2: Convert to fraction form
    124,789.89/172,209.67 = 68,201.27/x
  3. Step 3: Cross multiply
    124,789.89x = 172,209.67 × 68,201.27
  4. Step 4: Simplify right side
    124,789.89x = 11,744,917,168.73
  5. Step 5: Solve for x
    x = 11,744,917,168.73/124,789.89
  6. Step 6: Final answer
    x = 94,117.54

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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.