Home / 127,890.36-191,809.62-43,604.82

Finding the Fourth Proportional to 127,890.36, 191,809.62 and 43,604.82

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Solution

The fourth proportional to 127,890.36, 191,809.62 and 43,604.82 is: 65,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890.36 : 191,809.62 = 43,604.82 : x
  2. Step 2: Convert to fraction form
    127,890.36/191,809.62 = 43,604.82/x
  3. Step 3: Cross multiply
    127,890.36x = 191,809.62 × 43,604.82
  4. Step 4: Simplify right side
    127,890.36x = 8,363,823,954.37
  5. Step 5: Solve for x
    x = 8,363,823,954.37/127,890.36
  6. Step 6: Final answer
    x = 65,398.39

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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.