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Finding the Fourth Proportional to 119,626.80, 179,245.80 and 112,628.40

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Solution

The fourth proportional to 119,626.80, 179,245.80 and 112,628.40 is: 168,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,626.80 : 179,245.80 = 112,628.40 : x
  2. Step 2: Convert to fraction form
    119,626.80/179,245.80 = 112,628.40/x
  3. Step 3: Cross multiply
    119,626.80x = 179,245.80 × 112,628.40
  4. Step 4: Simplify right side
    119,626.80x = 20,188,167,660.72
  5. Step 5: Solve for x
    x = 20,188,167,660.72/119,626.80
  6. Step 6: Final answer
    x = 168,759.57

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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.