Home / 136,013.78-187,696.54-75,583.33

Finding the Fourth Proportional to 136,013.78, 187,696.54 and 75,583.33

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Solution

The fourth proportional to 136,013.78, 187,696.54 and 75,583.33 is: 104,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,013.78 : 187,696.54 = 75,583.33 : x
  2. Step 2: Convert to fraction form
    136,013.78/187,696.54 = 75,583.33/x
  3. Step 3: Cross multiply
    136,013.78x = 187,696.54 × 75,583.33
  4. Step 4: Simplify right side
    136,013.78x = 14,186,729,147.92
  5. Step 5: Solve for x
    x = 14,186,729,147.92/136,013.78
  6. Step 6: Final answer
    x = 104,303.61

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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.