Home / 136,144.73-187,684.97-90,806.16

Finding the Fourth Proportional to 136,144.73, 187,684.97 and 90,806.16

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Solution

The fourth proportional to 136,144.73, 187,684.97 and 90,806.16 is: 125,182.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,144.73 : 187,684.97 = 90,806.16 : x
  2. Step 2: Convert to fraction form
    136,144.73/187,684.97 = 90,806.16/x
  3. Step 3: Cross multiply
    136,144.73x = 187,684.97 × 90,806.16
  4. Step 4: Simplify right side
    136,144.73x = 17,042,951,665.20
  5. Step 5: Solve for x
    x = 17,042,951,665.20/136,144.73
  6. Step 6: Final answer
    x = 125,182.60

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1.5x scale

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.