Home / 135,136.27-186,468.24-76,993.57

Finding the Fourth Proportional to 135,136.27, 186,468.24 and 76,993.57

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Solution

The fourth proportional to 135,136.27, 186,468.24 and 76,993.57 is: 106,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,136.27 : 186,468.24 = 76,993.57 : x
  2. Step 2: Convert to fraction form
    135,136.27/186,468.24 = 76,993.57/x
  3. Step 3: Cross multiply
    135,136.27x = 186,468.24 × 76,993.57
  4. Step 4: Simplify right side
    135,136.27x = 14,356,855,489.22
  5. Step 5: Solve for x
    x = 14,356,855,489.22/135,136.27
  6. Step 6: Final answer
    x = 106,239.84

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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.