Home / 108,302.20-162,453.30-103,636.60

Finding the Fourth Proportional to 108,302.20, 162,453.30 and 103,636.60

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Solution

The fourth proportional to 108,302.20, 162,453.30 and 103,636.60 is: 155,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,302.20 : 162,453.30 = 103,636.60 : x
  2. Step 2: Convert to fraction form
    108,302.20/162,453.30 = 103,636.60/x
  3. Step 3: Cross multiply
    108,302.20x = 162,453.30 × 103,636.60
  4. Step 4: Simplify right side
    108,302.20x = 16,836,107,670.78
  5. Step 5: Solve for x
    x = 16,836,107,670.78/108,302.20
  6. Step 6: Final answer
    x = 155,454.90

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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.