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Finding the Fourth Proportional to 136,635.66, 188,573.66 and 80,047.03

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Solution

The fourth proportional to 136,635.66, 188,573.66 and 80,047.03 is: 110,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,635.66 : 188,573.66 = 80,047.03 : x
  2. Step 2: Convert to fraction form
    136,635.66/188,573.66 = 80,047.03/x
  3. Step 3: Cross multiply
    136,635.66x = 188,573.66 × 80,047.03
  4. Step 4: Simplify right side
    136,635.66x = 15,094,761,419.23
  5. Step 5: Solve for x
    x = 15,094,761,419.23/136,635.66
  6. Step 6: Final answer
    x = 110,474.54

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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.