Home / 231,196.80-346,892.40-126,091.20

Finding the Fourth Proportional to 231,196.80, 346,892.40 and 126,091.20

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Solution

The fourth proportional to 231,196.80, 346,892.40 and 126,091.20 is: 189,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,196.80 : 346,892.40 = 126,091.20 : x
  2. Step 2: Convert to fraction form
    231,196.80/346,892.40 = 126,091.20/x
  3. Step 3: Cross multiply
    231,196.80x = 346,892.40 × 126,091.20
  4. Step 4: Simplify right side
    231,196.80x = 43,740,078,986.88
  5. Step 5: Solve for x
    x = 43,740,078,986.88/231,196.80
  6. Step 6: Final answer
    x = 189,189.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.