Home / 172,123.20-258,107.04-61,318.08

Finding the Fourth Proportional to 172,123.20, 258,107.04 and 61,318.08

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Solution

The fourth proportional to 172,123.20, 258,107.04 and 61,318.08 is: 91,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,123.20 : 258,107.04 = 61,318.08 : x
  2. Step 2: Convert to fraction form
    172,123.20/258,107.04 = 61,318.08/x
  3. Step 3: Cross multiply
    172,123.20x = 258,107.04 × 61,318.08
  4. Step 4: Simplify right side
    172,123.20x = 15,826,628,127.28
  5. Step 5: Solve for x
    x = 15,826,628,127.28/172,123.20
  6. Step 6: Final answer
    x = 91,949.42

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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.