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Finding the Fourth Proportional to 136,611.56, 188,548.56 and 80,022.94

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Solution

The fourth proportional to 136,611.56, 188,548.56 and 80,022.94 is: 110,446.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,611.56 : 188,548.56 = 80,022.94 : x
  2. Step 2: Convert to fraction form
    136,611.56/188,548.56 = 80,022.94/x
  3. Step 3: Cross multiply
    136,611.56x = 188,548.56 × 80,022.94
  4. Step 4: Simplify right side
    136,611.56x = 15,088,209,632.60
  5. Step 5: Solve for x
    x = 15,088,209,632.60/136,611.56
  6. Step 6: Final answer
    x = 110,446.07

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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.