Home / 108,532.20-162,539.10-66,541.80

Finding the Fourth Proportional to 108,532.20, 162,539.10 and 66,541.80

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Solution

The fourth proportional to 108,532.20, 162,539.10 and 66,541.80 is: 99,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,532.20 : 162,539.10 = 66,541.80 : x
  2. Step 2: Convert to fraction form
    108,532.20/162,539.10 = 66,541.80/x
  3. Step 3: Cross multiply
    108,532.20x = 162,539.10 × 66,541.80
  4. Step 4: Simplify right side
    108,532.20x = 10,815,644,284.38
  5. Step 5: Solve for x
    x = 10,815,644,284.38/108,532.20
  6. Step 6: Final answer
    x = 99,653.78

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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.