Home / 90,033.20-134,923.04-68,891.44

Finding the Fourth Proportional to 90,033.20, 134,923.04 and 68,891.44

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Solution

The fourth proportional to 90,033.20, 134,923.04 and 68,891.44 is: 103,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,033.20 : 134,923.04 = 68,891.44 : x
  2. Step 2: Convert to fraction form
    90,033.20/134,923.04 = 68,891.44/x
  3. Step 3: Cross multiply
    90,033.20x = 134,923.04 × 68,891.44
  4. Step 4: Simplify right side
    90,033.20x = 9,295,042,514.78
  5. Step 5: Solve for x
    x = 9,295,042,514.78/90,033.20
  6. Step 6: Final answer
    x = 103,240.17

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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.