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Finding the Fourth Proportional to 108,270.20, 150,068 and 102,040.88

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Solution

The fourth proportional to 108,270.20, 150,068 and 102,040.88 is: 141,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,270.20 : 150,068 = 102,040.88 : x
  2. Step 2: Convert to fraction form
    108,270.20/150,068 = 102,040.88/x
  3. Step 3: Cross multiply
    108,270.20x = 150,068 × 102,040.88
  4. Step 4: Simplify right side
    108,270.20x = 15,313,070,779.84
  5. Step 5: Solve for x
    x = 15,313,070,779.84/108,270.20
  6. Step 6: Final answer
    x = 141,433.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.