Home / 115,614-173,456.01-81,945.18

Finding the Fourth Proportional to 115,614, 173,456.01 and 81,945.18

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Solution

The fourth proportional to 115,614, 173,456.01 and 81,945.18 is: 122,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,614 : 173,456.01 = 81,945.18 : x
  2. Step 2: Convert to fraction form
    115,614/173,456.01 = 81,945.18/x
  3. Step 3: Cross multiply
    115,614x = 173,456.01 × 81,945.18
  4. Step 4: Simplify right side
    115,614x = 14,213,883,961.53
  5. Step 5: Solve for x
    x = 14,213,883,961.53/115,614
  6. Step 6: Final answer
    x = 122,942.58

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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.