Home / 171,815.30-257,285.55-163,942.10

Finding the Fourth Proportional to 171,815.30, 257,285.55 and 163,942.10

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Solution

The fourth proportional to 171,815.30, 257,285.55 and 163,942.10 is: 245,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,815.30 : 257,285.55 = 163,942.10 : x
  2. Step 2: Convert to fraction form
    171,815.30/257,285.55 = 163,942.10/x
  3. Step 3: Cross multiply
    171,815.30x = 257,285.55 × 163,942.10
  4. Step 4: Simplify right side
    171,815.30x = 42,179,933,366.66
  5. Step 5: Solve for x
    x = 42,179,933,366.66/171,815.30
  6. Step 6: Final answer
    x = 245,495.79

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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.