Home / 188,127.82-282,234.83-81,529.66

Finding the Fourth Proportional to 188,127.82, 282,234.83 and 81,529.66

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Solution

The fourth proportional to 188,127.82, 282,234.83 and 81,529.66 is: 122,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,127.82 : 282,234.83 = 81,529.66 : x
  2. Step 2: Convert to fraction form
    188,127.82/282,234.83 = 81,529.66/x
  3. Step 3: Cross multiply
    188,127.82x = 282,234.83 × 81,529.66
  4. Step 4: Simplify right side
    188,127.82x = 23,010,509,730.06
  5. Step 5: Solve for x
    x = 23,010,509,730.06/188,127.82
  6. Step 6: Final answer
    x = 122,313.17

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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.