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Finding the Fourth Proportional to 172,544.52, 258,816.80 and 79,050.28

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Solution

The fourth proportional to 172,544.52, 258,816.80 and 79,050.28 is: 118,575.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,544.52 : 258,816.80 = 79,050.28 : x
  2. Step 2: Convert to fraction form
    172,544.52/258,816.80 = 79,050.28/x
  3. Step 3: Cross multiply
    172,544.52x = 258,816.80 × 79,050.28
  4. Step 4: Simplify right side
    172,544.52x = 20,459,540,508.70
  5. Step 5: Solve for x
    x = 20,459,540,508.70/172,544.52
  6. Step 6: Final answer
    x = 118,575.43

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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.