Home / 104,215.26-155,949.20-90,223.42

Finding the Fourth Proportional to 104,215.26, 155,949.20 and 90,223.42

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Solution

The fourth proportional to 104,215.26, 155,949.20 and 90,223.42 is: 135,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,215.26 : 155,949.20 = 90,223.42 : x
  2. Step 2: Convert to fraction form
    104,215.26/155,949.20 = 90,223.42/x
  3. Step 3: Cross multiply
    104,215.26x = 155,949.20 × 90,223.42
  4. Step 4: Simplify right side
    104,215.26x = 14,070,269,960.02
  5. Step 5: Solve for x
    x = 14,070,269,960.02/104,215.26
  6. Step 6: Final answer
    x = 135,011.61

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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.