Home / 257,542.63-386,308.05-68,016.36

Finding the Fourth Proportional to 257,542.63, 386,308.05 and 68,016.36

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Solution

The fourth proportional to 257,542.63, 386,308.05 and 68,016.36 is: 102,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,542.63 : 386,308.05 = 68,016.36 : x
  2. Step 2: Convert to fraction form
    257,542.63/386,308.05 = 68,016.36/x
  3. Step 3: Cross multiply
    257,542.63x = 386,308.05 × 68,016.36
  4. Step 4: Simplify right side
    257,542.63x = 26,275,267,399.70
  5. Step 5: Solve for x
    x = 26,275,267,399.70/257,542.63
  6. Step 6: Final answer
    x = 102,022.98

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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.