Home / 139,186.64-192,013.80-82,577.36

Finding the Fourth Proportional to 139,186.64, 192,013.80 and 82,577.36

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Solution

The fourth proportional to 139,186.64, 192,013.80 and 82,577.36 is: 113,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,186.64 : 192,013.80 = 82,577.36 : x
  2. Step 2: Convert to fraction form
    139,186.64/192,013.80 = 82,577.36/x
  3. Step 3: Cross multiply
    139,186.64x = 192,013.80 × 82,577.36
  4. Step 4: Simplify right side
    139,186.64x = 15,855,992,687.57
  5. Step 5: Solve for x
    x = 15,855,992,687.57/139,186.64
  6. Step 6: Final answer
    x = 113,918.93

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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.