Home / 170,067.12-255,035.04-81,296.82

Finding the Fourth Proportional to 170,067.12, 255,035.04 and 81,296.82

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Solution

The fourth proportional to 170,067.12, 255,035.04 and 81,296.82 is: 121,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,067.12 : 255,035.04 = 81,296.82 : x
  2. Step 2: Convert to fraction form
    170,067.12/255,035.04 = 81,296.82/x
  3. Step 3: Cross multiply
    170,067.12x = 255,035.04 × 81,296.82
  4. Step 4: Simplify right side
    170,067.12x = 20,733,537,740.57
  5. Step 5: Solve for x
    x = 20,733,537,740.57/170,067.12
  6. Step 6: Final answer
    x = 121,913.85

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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.