Home / 166,022.80-248,805.78-71,139.40

Finding the Fourth Proportional to 166,022.80, 248,805.78 and 71,139.40

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Solution

The fourth proportional to 166,022.80, 248,805.78 and 71,139.40 is: 106,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,022.80 : 248,805.78 = 71,139.40 : x
  2. Step 2: Convert to fraction form
    166,022.80/248,805.78 = 71,139.40/x
  3. Step 3: Cross multiply
    166,022.80x = 248,805.78 × 71,139.40
  4. Step 4: Simplify right side
    166,022.80x = 17,699,893,016.94
  5. Step 5: Solve for x
    x = 17,699,893,016.94/166,022.80
  6. Step 6: Final answer
    x = 106,611.22

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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.