Home / 128,577.58-192,896.94-53,656.09

Finding the Fourth Proportional to 128,577.58, 192,896.94 and 53,656.09

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Solution

The fourth proportional to 128,577.58, 192,896.94 and 53,656.09 is: 80,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.58 : 192,896.94 = 53,656.09 : x
  2. Step 2: Convert to fraction form
    128,577.58/192,896.94 = 53,656.09/x
  3. Step 3: Cross multiply
    128,577.58x = 192,896.94 × 53,656.09
  4. Step 4: Simplify right side
    128,577.58x = 10,350,095,573.36
  5. Step 5: Solve for x
    x = 10,350,095,573.36/128,577.58
  6. Step 6: Final answer
    x = 80,496.89

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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.