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Finding the Fourth Proportional to 163,223.89, 225,342.72 and 108,761.69

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Solution

The fourth proportional to 163,223.89, 225,342.72 and 108,761.69 is: 150,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,223.89 : 225,342.72 = 108,761.69 : x
  2. Step 2: Convert to fraction form
    163,223.89/225,342.72 = 108,761.69/x
  3. Step 3: Cross multiply
    163,223.89x = 225,342.72 × 108,761.69
  4. Step 4: Simplify right side
    163,223.89x = 24,508,655,619.75
  5. Step 5: Solve for x
    x = 24,508,655,619.75/163,223.89
  6. Step 6: Final answer
    x = 150,153.61

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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.