Home / 271,921.36-407,890.08-129,781.62

Finding the Fourth Proportional to 271,921.36, 407,890.08 and 129,781.62

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Solution

The fourth proportional to 271,921.36, 407,890.08 and 129,781.62 is: 194,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,921.36 : 407,890.08 = 129,781.62 : x
  2. Step 2: Convert to fraction form
    271,921.36/407,890.08 = 129,781.62/x
  3. Step 3: Cross multiply
    271,921.36x = 407,890.08 × 129,781.62
  4. Step 4: Simplify right side
    271,921.36x = 52,936,635,364.33
  5. Step 5: Solve for x
    x = 52,936,635,364.33/271,921.36
  6. Step 6: Final answer
    x = 194,676.27

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1.5x scale

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.