Home / 103,336.17-154,601.39-90,584.70

Finding the Fourth Proportional to 103,336.17, 154,601.39 and 90,584.70

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Solution

The fourth proportional to 103,336.17, 154,601.39 and 90,584.70 is: 135,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,336.17 : 154,601.39 = 90,584.70 : x
  2. Step 2: Convert to fraction form
    103,336.17/154,601.39 = 90,584.70/x
  3. Step 3: Cross multiply
    103,336.17x = 154,601.39 × 90,584.70
  4. Step 4: Simplify right side
    103,336.17x = 14,004,520,532.73
  5. Step 5: Solve for x
    x = 14,004,520,532.73/103,336.17
  6. Step 6: Final answer
    x = 135,523.90

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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.