Home / 136,696.20-204,982.78-57,769.80

Finding the Fourth Proportional to 136,696.20, 204,982.78 and 57,769.80

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Solution

The fourth proportional to 136,696.20, 204,982.78 and 57,769.80 is: 86,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,696.20 : 204,982.78 = 57,769.80 : x
  2. Step 2: Convert to fraction form
    136,696.20/204,982.78 = 57,769.80/x
  3. Step 3: Cross multiply
    136,696.20x = 204,982.78 × 57,769.80
  4. Step 4: Simplify right side
    136,696.20x = 11,841,814,204.04
  5. Step 5: Solve for x
    x = 11,841,814,204.04/136,696.20
  6. Step 6: Final answer
    x = 86,628.70

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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.