Home / 136,021.41-187,651.28-84,945.48

Finding the Fourth Proportional to 136,021.41, 187,651.28 and 84,945.48

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Solution

The fourth proportional to 136,021.41, 187,651.28 and 84,945.48 is: 117,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,021.41 : 187,651.28 = 84,945.48 : x
  2. Step 2: Convert to fraction form
    136,021.41/187,651.28 = 84,945.48/x
  3. Step 3: Cross multiply
    136,021.41x = 187,651.28 × 84,945.48
  4. Step 4: Simplify right side
    136,021.41x = 15,940,127,560.89
  5. Step 5: Solve for x
    x = 15,940,127,560.89/136,021.41
  6. Step 6: Final answer
    x = 117,188.37

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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.