Home / 171,634.20-257,297.70-66,418.20

Finding the Fourth Proportional to 171,634.20, 257,297.70 and 66,418.20

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Solution

The fourth proportional to 171,634.20, 257,297.70 and 66,418.20 is: 99,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,634.20 : 257,297.70 = 66,418.20 : x
  2. Step 2: Convert to fraction form
    171,634.20/257,297.70 = 66,418.20/x
  3. Step 3: Cross multiply
    171,634.20x = 257,297.70 × 66,418.20
  4. Step 4: Simplify right side
    171,634.20x = 17,089,250,098.14
  5. Step 5: Solve for x
    x = 17,089,250,098.14/171,634.20
  6. Step 6: Final answer
    x = 99,567.86

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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.