Home / 170,723.85-256,249.80-86,579.03

Finding the Fourth Proportional to 170,723.85, 256,249.80 and 86,579.03

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Solution

The fourth proportional to 170,723.85, 256,249.80 and 86,579.03 is: 129,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,723.85 : 256,249.80 = 86,579.03 : x
  2. Step 2: Convert to fraction form
    170,723.85/256,249.80 = 86,579.03/x
  3. Step 3: Cross multiply
    170,723.85x = 256,249.80 × 86,579.03
  4. Step 4: Simplify right side
    170,723.85x = 22,185,857,840.45
  5. Step 5: Solve for x
    x = 22,185,857,840.45/170,723.85
  6. Step 6: Final answer
    x = 129,951.72

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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.