Home / 104,714.78-156,979.20-38,142.50

Finding the Fourth Proportional to 104,714.78, 156,979.20 and 38,142.50

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Solution

The fourth proportional to 104,714.78, 156,979.20 and 38,142.50 is: 57,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,714.78 : 156,979.20 = 38,142.50 : x
  2. Step 2: Convert to fraction form
    104,714.78/156,979.20 = 38,142.50/x
  3. Step 3: Cross multiply
    104,714.78x = 156,979.20 × 38,142.50
  4. Step 4: Simplify right side
    104,714.78x = 5,987,579,136
  5. Step 5: Solve for x
    x = 5,987,579,136/104,714.78
  6. Step 6: Final answer
    x = 57,179.89

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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.