Home / 136,786.37-188,589.68-112,166.50

Finding the Fourth Proportional to 136,786.37, 188,589.68 and 112,166.50

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Solution

The fourth proportional to 136,786.37, 188,589.68 and 112,166.50 is: 154,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,786.37 : 188,589.68 = 112,166.50 : x
  2. Step 2: Convert to fraction form
    136,786.37/188,589.68 = 112,166.50/x
  3. Step 3: Cross multiply
    136,786.37x = 188,589.68 × 112,166.50
  4. Step 4: Simplify right side
    136,786.37x = 21,153,444,904.39
  5. Step 5: Solve for x
    x = 21,153,444,904.39/136,786.37
  6. Step 6: Final answer
    x = 154,645.85

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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.