Home / 236,546.82-326,431.89-129,115.98

Finding the Fourth Proportional to 236,546.82, 326,431.89 and 129,115.98

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Solution

The fourth proportional to 236,546.82, 326,431.89 and 129,115.98 is: 178,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,546.82 : 326,431.89 = 129,115.98 : x
  2. Step 2: Convert to fraction form
    236,546.82/326,431.89 = 129,115.98/x
  3. Step 3: Cross multiply
    236,546.82x = 326,431.89 × 129,115.98
  4. Step 4: Simplify right side
    236,546.82x = 42,147,573,380.60
  5. Step 5: Solve for x
    x = 42,147,573,380.60/236,546.82
  6. Step 6: Final answer
    x = 178,178.57

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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.