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Finding the Fourth Proportional to 171,987.64, 258,055.38 and 88,939.96

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Solution

The fourth proportional to 171,987.64, 258,055.38 and 88,939.96 is: 133,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,987.64 : 258,055.38 = 88,939.96 : x
  2. Step 2: Convert to fraction form
    171,987.64/258,055.38 = 88,939.96/x
  3. Step 3: Cross multiply
    171,987.64x = 258,055.38 × 88,939.96
  4. Step 4: Simplify right side
    171,987.64x = 22,951,435,174.98
  5. Step 5: Solve for x
    x = 22,951,435,174.98/171,987.64
  6. Step 6: Final answer
    x = 133,448.17

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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.