Home / 112,908.09-169,362.21-28,674.57

Finding the Fourth Proportional to 112,908.09, 169,362.21 and 28,674.57

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Solution

The fourth proportional to 112,908.09, 169,362.21 and 28,674.57 is: 43,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,908.09 : 169,362.21 = 28,674.57 : x
  2. Step 2: Convert to fraction form
    112,908.09/169,362.21 = 28,674.57/x
  3. Step 3: Cross multiply
    112,908.09x = 169,362.21 × 28,674.57
  4. Step 4: Simplify right side
    112,908.09x = 4,856,388,546.00
  5. Step 5: Solve for x
    x = 4,856,388,546.00/112,908.09
  6. Step 6: Final answer
    x = 43,011.87

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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.