Home / 172,859.12-259,288.68-54,542.36

Finding the Fourth Proportional to 172,859.12, 259,288.68 and 54,542.36

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Solution

The fourth proportional to 172,859.12, 259,288.68 and 54,542.36 is: 81,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,859.12 : 259,288.68 = 54,542.36 : x
  2. Step 2: Convert to fraction form
    172,859.12/259,288.68 = 54,542.36/x
  3. Step 3: Cross multiply
    172,859.12x = 259,288.68 × 54,542.36
  4. Step 4: Simplify right side
    172,859.12x = 14,142,216,528.48
  5. Step 5: Solve for x
    x = 14,142,216,528.48/172,859.12
  6. Step 6: Final answer
    x = 81,813.54

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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.