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Finding the Fourth Proportional to 108,271.80, 162,213.30 and 92,719.80

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Solution

The fourth proportional to 108,271.80, 162,213.30 and 92,719.80 is: 138,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,271.80 : 162,213.30 = 92,719.80 : x
  2. Step 2: Convert to fraction form
    108,271.80/162,213.30 = 92,719.80/x
  3. Step 3: Cross multiply
    108,271.80x = 162,213.30 × 92,719.80
  4. Step 4: Simplify right side
    108,271.80x = 15,040,384,733.34
  5. Step 5: Solve for x
    x = 15,040,384,733.34/108,271.80
  6. Step 6: Final answer
    x = 138,913.22

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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.