Home / 122,493.13-168,997.84-77,175.16

Finding the Fourth Proportional to 122,493.13, 168,997.84 and 77,175.16

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Solution

The fourth proportional to 122,493.13, 168,997.84 and 77,175.16 is: 106,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,493.13 : 168,997.84 = 77,175.16 : x
  2. Step 2: Convert to fraction form
    122,493.13/168,997.84 = 77,175.16/x
  3. Step 3: Cross multiply
    122,493.13x = 168,997.84 × 77,175.16
  4. Step 4: Simplify right side
    122,493.13x = 13,042,435,341.65
  5. Step 5: Solve for x
    x = 13,042,435,341.65/122,493.13
  6. Step 6: Final answer
    x = 106,474.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.