Home / 136,629-204,557.07-72,440.91

Finding the Fourth Proportional to 136,629, 204,557.07 and 72,440.91

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Solution

The fourth proportional to 136,629, 204,557.07 and 72,440.91 is: 108,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,629 : 204,557.07 = 72,440.91 : x
  2. Step 2: Convert to fraction form
    136,629/204,557.07 = 72,440.91/x
  3. Step 3: Cross multiply
    136,629x = 204,557.07 × 72,440.91
  4. Step 4: Simplify right side
    136,629x = 14,818,300,297.73
  5. Step 5: Solve for x
    x = 14,818,300,297.73/136,629
  6. Step 6: Final answer
    x = 108,456.48

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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.