Home / 172,406.20-258,682.20-109,274.80

Finding the Fourth Proportional to 172,406.20, 258,682.20 and 109,274.80

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Solution

The fourth proportional to 172,406.20, 258,682.20 and 109,274.80 is: 163,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,406.20 : 258,682.20 = 109,274.80 : x
  2. Step 2: Convert to fraction form
    172,406.20/258,682.20 = 109,274.80/x
  3. Step 3: Cross multiply
    172,406.20x = 258,682.20 × 109,274.80
  4. Step 4: Simplify right side
    172,406.20x = 28,267,445,668.56
  5. Step 5: Solve for x
    x = 28,267,445,668.56/172,406.20
  6. Step 6: Final answer
    x = 163,958.41

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1.5x scale

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.