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Finding the Fourth Proportional to 136,380.65, 188,191.81 and 75,956.92

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Solution

The fourth proportional to 136,380.65, 188,191.81 and 75,956.92 is: 104,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,380.65 : 188,191.81 = 75,956.92 : x
  2. Step 2: Convert to fraction form
    136,380.65/188,191.81 = 75,956.92/x
  3. Step 3: Cross multiply
    136,380.65x = 188,191.81 × 75,956.92
  4. Step 4: Simplify right side
    136,380.65x = 14,294,469,505.76
  5. Step 5: Solve for x
    x = 14,294,469,505.76/136,380.65
  6. Step 6: Final answer
    x = 104,813.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.