Home / 172,004.20-258,105.84-72,155.44

Finding the Fourth Proportional to 172,004.20, 258,105.84 and 72,155.44

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Solution

The fourth proportional to 172,004.20, 258,105.84 and 72,155.44 is: 108,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,004.20 : 258,105.84 = 72,155.44 : x
  2. Step 2: Convert to fraction form
    172,004.20/258,105.84 = 72,155.44/x
  3. Step 3: Cross multiply
    172,004.20x = 258,105.84 × 72,155.44
  4. Step 4: Simplify right side
    172,004.20x = 18,623,740,451.77
  5. Step 5: Solve for x
    x = 18,623,740,451.77/172,004.20
  6. Step 6: Final answer
    x = 108,274.92

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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.