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Finding the Fourth Proportional to 172,670.58, 259,005.86 and 83,847.96

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Solution

The fourth proportional to 172,670.58, 259,005.86 and 83,847.96 is: 125,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,670.58 : 259,005.86 = 83,847.96 : x
  2. Step 2: Convert to fraction form
    172,670.58/259,005.86 = 83,847.96/x
  3. Step 3: Cross multiply
    172,670.58x = 259,005.86 × 83,847.96
  4. Step 4: Simplify right side
    172,670.58x = 21,717,112,989.05
  5. Step 5: Solve for x
    x = 21,717,112,989.05/172,670.58
  6. Step 6: Final answer
    x = 125,771.94

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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.