Home / 108,537.20-162,546.60-66,546.80

Finding the Fourth Proportional to 108,537.20, 162,546.60 and 66,546.80

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Solution

The fourth proportional to 108,537.20, 162,546.60 and 66,546.80 is: 99,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,537.20 : 162,546.60 = 66,546.80 : x
  2. Step 2: Convert to fraction form
    108,537.20/162,546.60 = 66,546.80/x
  3. Step 3: Cross multiply
    108,537.20x = 162,546.60 × 66,546.80
  4. Step 4: Simplify right side
    108,537.20x = 10,816,956,080.88
  5. Step 5: Solve for x
    x = 10,816,956,080.88/108,537.20
  6. Step 6: Final answer
    x = 99,661.28

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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.