Home / 109,286.37-163,915.19-34,406.90

Finding the Fourth Proportional to 109,286.37, 163,915.19 and 34,406.90

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Solution

The fourth proportional to 109,286.37, 163,915.19 and 34,406.90 is: 51,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,286.37 : 163,915.19 = 34,406.90 : x
  2. Step 2: Convert to fraction form
    109,286.37/163,915.19 = 34,406.90/x
  3. Step 3: Cross multiply
    109,286.37x = 163,915.19 × 34,406.90
  4. Step 4: Simplify right side
    109,286.37x = 5,639,813,550.81
  5. Step 5: Solve for x
    x = 5,639,813,550.81/109,286.37
  6. Step 6: Final answer
    x = 51,605.83

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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.