Home / 171,023.88-256,540.20-81,045.48

Finding the Fourth Proportional to 171,023.88, 256,540.20 and 81,045.48

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Solution

The fourth proportional to 171,023.88, 256,540.20 and 81,045.48 is: 121,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,023.88 : 256,540.20 = 81,045.48 : x
  2. Step 2: Convert to fraction form
    171,023.88/256,540.20 = 81,045.48/x
  3. Step 3: Cross multiply
    171,023.88x = 256,540.20 × 81,045.48
  4. Step 4: Simplify right side
    171,023.88x = 20,791,423,648.30
  5. Step 5: Solve for x
    x = 20,791,423,648.30/171,023.88
  6. Step 6: Final answer
    x = 121,570.30

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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.