Home / 112,786.20-169,162.59-68,401.04

Finding the Fourth Proportional to 112,786.20, 169,162.59 and 68,401.04

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Solution

The fourth proportional to 112,786.20, 169,162.59 and 68,401.04 is: 102,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,786.20 : 169,162.59 = 68,401.04 : x
  2. Step 2: Convert to fraction form
    112,786.20/169,162.59 = 68,401.04/x
  3. Step 3: Cross multiply
    112,786.20x = 169,162.59 × 68,401.04
  4. Step 4: Simplify right side
    112,786.20x = 11,570,896,239.28
  5. Step 5: Solve for x
    x = 11,570,896,239.28/112,786.20
  6. Step 6: Final answer
    x = 102,591.42

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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.