Home / 154,940.92-213,815.66-86,952.56

Finding the Fourth Proportional to 154,940.92, 213,815.66 and 86,952.56

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Solution

The fourth proportional to 154,940.92, 213,815.66 and 86,952.56 is: 119,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,940.92 : 213,815.66 = 86,952.56 : x
  2. Step 2: Convert to fraction form
    154,940.92/213,815.66 = 86,952.56/x
  3. Step 3: Cross multiply
    154,940.92x = 213,815.66 × 86,952.56
  4. Step 4: Simplify right side
    154,940.92x = 18,591,819,005.09
  5. Step 5: Solve for x
    x = 18,591,819,005.09/154,940.92
  6. Step 6: Final answer
    x = 119,992.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.