Home / 171,723.20-257,584.80-45,363.20

Finding the Fourth Proportional to 171,723.20, 257,584.80 and 45,363.20

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Solution

The fourth proportional to 171,723.20, 257,584.80 and 45,363.20 is: 68,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,723.20 : 257,584.80 = 45,363.20 : x
  2. Step 2: Convert to fraction form
    171,723.20/257,584.80 = 45,363.20/x
  3. Step 3: Cross multiply
    171,723.20x = 257,584.80 × 45,363.20
  4. Step 4: Simplify right side
    171,723.20x = 11,684,870,799.36
  5. Step 5: Solve for x
    x = 11,684,870,799.36/171,723.20
  6. Step 6: Final answer
    x = 68,044.80

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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.