Home / 135,696.70-187,283.87-75,286.81

Finding the Fourth Proportional to 135,696.70, 187,283.87 and 75,286.81

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Solution

The fourth proportional to 135,696.70, 187,283.87 and 75,286.81 is: 103,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,696.70 : 187,283.87 = 75,286.81 : x
  2. Step 2: Convert to fraction form
    135,696.70/187,283.87 = 75,286.81/x
  3. Step 3: Cross multiply
    135,696.70x = 187,283.87 × 75,286.81
  4. Step 4: Simplify right side
    135,696.70x = 14,100,005,136.75
  5. Step 5: Solve for x
    x = 14,100,005,136.75/135,696.70
  6. Step 6: Final answer
    x = 103,908.24

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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.