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Finding the Fourth Proportional to 171,879.04, 257,910.72 and 73,360

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Solution

The fourth proportional to 171,879.04, 257,910.72 and 73,360 is: 110,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,879.04 : 257,910.72 = 73,360 : x
  2. Step 2: Convert to fraction form
    171,879.04/257,910.72 = 73,360/x
  3. Step 3: Cross multiply
    171,879.04x = 257,910.72 × 73,360
  4. Step 4: Simplify right side
    171,879.04x = 18,920,330,419.20
  5. Step 5: Solve for x
    x = 18,920,330,419.20/171,879.04
  6. Step 6: Final answer
    x = 110,079.33

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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.