Home / 136,688.33-188,629.62-76,255.37

Finding the Fourth Proportional to 136,688.33, 188,629.62 and 76,255.37

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Solution

The fourth proportional to 136,688.33, 188,629.62 and 76,255.37 is: 105,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,688.33 : 188,629.62 = 76,255.37 : x
  2. Step 2: Convert to fraction form
    136,688.33/188,629.62 = 76,255.37/x
  3. Step 3: Cross multiply
    136,688.33x = 188,629.62 × 76,255.37
  4. Step 4: Simplify right side
    136,688.33x = 14,384,021,466.06
  5. Step 5: Solve for x
    x = 14,384,021,466.06/136,688.33
  6. Step 6: Final answer
    x = 105,232.26

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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.