Home / 136,013.78-204,055.27-79,901.37

Finding the Fourth Proportional to 136,013.78, 204,055.27 and 79,901.37

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Solution

The fourth proportional to 136,013.78, 204,055.27 and 79,901.37 is: 119,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,013.78 : 204,055.27 = 79,901.37 : x
  2. Step 2: Convert to fraction form
    136,013.78/204,055.27 = 79,901.37/x
  3. Step 3: Cross multiply
    136,013.78x = 204,055.27 × 79,901.37
  4. Step 4: Simplify right side
    136,013.78x = 16,304,295,428.97
  5. Step 5: Solve for x
    x = 16,304,295,428.97/136,013.78
  6. Step 6: Final answer
    x = 119,872.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.