Home / 172,277.64-258,153.30-72,383.22

Finding the Fourth Proportional to 172,277.64, 258,153.30 and 72,383.22

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Solution

The fourth proportional to 172,277.64, 258,153.30 and 72,383.22 is: 108,464.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,277.64 : 258,153.30 = 72,383.22 : x
  2. Step 2: Convert to fraction form
    172,277.64/258,153.30 = 72,383.22/x
  3. Step 3: Cross multiply
    172,277.64x = 258,153.30 × 72,383.22
  4. Step 4: Simplify right side
    172,277.64x = 18,685,967,107.63
  5. Step 5: Solve for x
    x = 18,685,967,107.63/172,277.64
  6. Step 6: Final answer
    x = 108,464.26

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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.