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Finding the Fourth Proportional to 172,171.53, 258,109.39 and 59,837.16

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Solution

The fourth proportional to 172,171.53, 258,109.39 and 59,837.16 is: 89,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,171.53 : 258,109.39 = 59,837.16 : x
  2. Step 2: Convert to fraction form
    172,171.53/258,109.39 = 59,837.16/x
  3. Step 3: Cross multiply
    172,171.53x = 258,109.39 × 59,837.16
  4. Step 4: Simplify right side
    172,171.53x = 15,444,531,277.20
  5. Step 5: Solve for x
    x = 15,444,531,277.20/172,171.53
  6. Step 6: Final answer
    x = 89,704.33

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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.