Home / 171,971.64-258,057.09-72,122.94

Finding the Fourth Proportional to 171,971.64, 258,057.09 and 72,122.94

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Solution

The fourth proportional to 171,971.64, 258,057.09 and 72,122.94 is: 108,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,971.64 : 258,057.09 = 72,122.94 : x
  2. Step 2: Convert to fraction form
    171,971.64/258,057.09 = 72,122.94/x
  3. Step 3: Cross multiply
    171,971.64x = 258,057.09 × 72,122.94
  4. Step 4: Simplify right side
    171,971.64x = 18,611,836,018.64
  5. Step 5: Solve for x
    x = 18,611,836,018.64/171,971.64
  6. Step 6: Final answer
    x = 108,226.19

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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.