Home / 161,450.46-242,175.89-77,190.82

Finding the Fourth Proportional to 161,450.46, 242,175.89 and 77,190.82

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Solution

The fourth proportional to 161,450.46, 242,175.89 and 77,190.82 is: 115,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,450.46 : 242,175.89 = 77,190.82 : x
  2. Step 2: Convert to fraction form
    161,450.46/242,175.89 = 77,190.82/x
  3. Step 3: Cross multiply
    161,450.46x = 242,175.89 × 77,190.82
  4. Step 4: Simplify right side
    161,450.46x = 18,693,755,120.87
  5. Step 5: Solve for x
    x = 18,693,755,120.87/161,450.46
  6. Step 6: Final answer
    x = 115,786.32

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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.