Home / 236,789.45-326,770.61-129,361.28

Finding the Fourth Proportional to 236,789.45, 326,770.61 and 129,361.28

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Solution

The fourth proportional to 236,789.45, 326,770.61 and 129,361.28 is: 178,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,789.45 : 326,770.61 = 129,361.28 : x
  2. Step 2: Convert to fraction form
    236,789.45/326,770.61 = 129,361.28/x
  3. Step 3: Cross multiply
    236,789.45x = 326,770.61 × 129,361.28
  4. Step 4: Simplify right side
    236,789.45x = 42,271,463,014.36
  5. Step 5: Solve for x
    x = 42,271,463,014.36/236,789.45
  6. Step 6: Final answer
    x = 178,519.20

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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.