Home / 108,714.36-162,989.30-71,283.86

Finding the Fourth Proportional to 108,714.36, 162,989.30 and 71,283.86

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Solution

The fourth proportional to 108,714.36, 162,989.30 and 71,283.86 is: 106,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,714.36 : 162,989.30 = 71,283.86 : x
  2. Step 2: Convert to fraction form
    108,714.36/162,989.30 = 71,283.86/x
  3. Step 3: Cross multiply
    108,714.36x = 162,989.30 × 71,283.86
  4. Step 4: Simplify right side
    108,714.36x = 11,618,505,271.33
  5. Step 5: Solve for x
    x = 11,618,505,271.33/108,714.36
  6. Step 6: Final answer
    x = 106,871.85

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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.